https://supertoolkit.app/ 100+ free, private, client-side digital workstation tools. Convert MP4 to MP3, merge & split PDF, enhance audio with Dolby spatial sound, compress images, and analyze data with zero server uploads. en-us Mon, 30 Mar 2026 09:00:00 GMT https://www.rssboard.org/rss-specification Super ToolKit Dynamic RSS 2.0 Engine https://supertoolkit.app/sitemap/ https://supertoolkit.app/sitemap/ Mon, 30 Mar 2026 09:00:00 GMT Complete index of all free online converters, PDF utilities, image compressors, audio studios, and compliance documentation. Index https://supertoolkit.app/release-notes/ https://supertoolkit.app/release-notes/ Mon, 30 Mar 2026 08:45:00 GMT Official release history, studio enhancements, audio DSP tools, and continuous improvements to the Super ToolKit online suite. Changelog https://supertoolkit.app/html-studio/ https://supertoolkit.app/html-studio/ Mon, 30 Mar 2026 08:00:00 GMT CodePen-style live HTML, CSS, and JavaScript editor and code formatter. Real-time sandboxed preview rendering videos, images, and audio with integrated developer console and live JS REPL. Developer & Code Tools https://supertoolkit.app/category/developer-tools/ https://supertoolkit.app/category/developer-tools/ Mon, 30 Mar 2026 08:00:00 GMT Free private developer tools: JWT debugger, cURL to code converter, Unix timestamp converter, visual cron expression builder, and SQL formatter. Developer & Code Tools https://supertoolkit.app/json-to-typescript/ https://supertoolkit.app/json-to-typescript/ Sat, 28 Mar 2026 07:00:00 GMT Transform raw JSON objects into clean TypeScript interfaces, type aliases, Zod validation schemas, and JSON Schema definitions with custom casing and nullability. Developer & Code Tools https://supertoolkit.app/chmod-calculator/ https://supertoolkit.app/chmod-calculator/ Sat, 28 Mar 2026 07:00:00 GMT Visual Linux and Unix file permissions calculator. Convert between octal and symbolic modes, toggle SUID/SGID/Sticky bits, and generate recursive bash commands. Developer & Code Tools https://supertoolkit.app/http-status-header-inspector/ https://supertoolkit.app/http-status-header-inspector/ Sat, 28 Mar 2026 07:00:00 GMT Interactive security headers generator (CSP, HSTS, CORS, X-Frame) & authoritative HTTP status code reference with RFC specs and SEO crawler impact. Developer & Code Tools https://supertoolkit.app/git-command-builder/ https://supertoolkit.app/git-command-builder/ Sat, 28 Mar 2026 07:00:00 GMT Interactive visual Git workflow architect and command generator. Undo commits safely, generate cherry-picks, rebase, squash commits, and master branching recipes. Developer & Code Tools https://supertoolkit.app/html-entity-encoder/ https://supertoolkit.app/html-entity-encoder/ Sat, 28 Mar 2026 07:00:00 GMT Bidirectional HTML entity encoder and decoder with Named, Decimal, Hexadecimal formats, JavaScript Unicode escapes, CSS escapes, and searchable character catalog. Developer & Code Tools https://supertoolkit.app/jwt-debugger/ https://supertoolkit.app/jwt-debugger/ Sat, 28 Mar 2026 06:00:00 GMT Decode JSON Web Tokens, inspect headers and claims, verify HMAC-SHA256 signatures with Web Crypto, and audit expiration dates with zero server leaks. Developer & Code Tools https://supertoolkit.app/curl-to-code/ https://supertoolkit.app/curl-to-code/ Sat, 28 Mar 2026 06:00:00 GMT Convert cURL commands to production-ready code for JavaScript (Fetch & Axios), Python (Requests & Httpx), Go, Node.js, PHP, and Rust. Developer & Code Tools https://supertoolkit.app/unix-timestamp-converter/ https://supertoolkit.app/unix-timestamp-converter/ Sat, 28 Mar 2026 06:00:00 GMT Live Unix epoch clock with bidirectional seconds/ms/μs conversion, relative time calculations, date offset math, and batch log converter. Developer & Code Tools https://supertoolkit.app/cron-expression-builder/ https://supertoolkit.app/cron-expression-builder/ Sat, 28 Mar 2026 06:00:00 GMT Visual interactive cron schedule builder with plain-English human translation and next 10 scheduled execution dates simulator. Developer & Code Tools https://supertoolkit.app/sql-formatter/ https://supertoolkit.app/sql-formatter/ Sat, 28 Mar 2026 06:00:00 GMT Beautify, format, indent, and minify SQL queries for PostgreSQL, MySQL, SQLite, T-SQL, and BigQuery with configurable keyword casing. Developer & Code Tools https://supertoolkit.app/request-feature/ https://supertoolkit.app/request-feature/ Sat, 28 Mar 2026 00:00:00 GMT Suggest new in-browser utilities, audio/video tools, PDF workflows, image processing features, or developer tools for Super ToolKit. Community https://supertoolkit.app/audio-reverb-studio/ https://supertoolkit.app/audio-reverb-studio/ Thu, 26 Mar 2026 12:00:00 GMT Add studio-grade acoustic reverb, vocal booth depth, hall reverberation, and space echo to any audio track with live dry/wet mix controls. Audio & Video https://supertoolkit.app/category/audio-video/ https://supertoolkit.app/category/audio-video/ Thu, 26 Mar 2026 12:00:00 GMT Free in-browser audio & video tools: Dolby spatial enhancer, 320kbps MP3 extractor, vocal remover, audio trimmer, reverb, and 8D sound studio. Audio & Video https://supertoolkit.app/dolby-audio-enhancer/ https://supertoolkit.app/dolby-audio-enhancer/ Wed, 25 Mar 2026 09:30:00 GMT Elevate any song with Dolby Atmos-style 3D spatial field expansion, sub-bass punch, vocal air sparkle, and dynamic studio mastering compression. Free and works offline. Audio & Video https://supertoolkit.app/compare/ https://supertoolkit.app/compare/ Wed, 25 Mar 2026 00:00:00 GMT Compare Super ToolKit against Convertio, CloudConvert, 123apps, and Zamzar with 100% in-browser WebAssembly processing. Comparison https://supertoolkit.app/convertio-alternative/ https://supertoolkit.app/convertio-alternative/ Wed, 25 Mar 2026 00:00:00 GMT Looking for a private Convertio alternative without the 100MB limit or cloud uploads? Super ToolKit processes video, audio, PDFs, and images locally in your browser for free. Comparison https://supertoolkit.app/cloudconvert-alternative/ https://supertoolkit.app/cloudconvert-alternative/ Wed, 25 Mar 2026 00:00:00 GMT Tired of CloudConvert hitting its 25 daily conversion credit limit? Super ToolKit offers unlimited, private in-browser conversions with zero server uploads. Comparison https://supertoolkit.app/ilovepdf-alternative/ https://supertoolkit.app/ilovepdf-alternative/ Wed, 25 Mar 2026 00:00:00 GMT Need to merge, split, or convert PDFs without uploading confidential contracts to the cloud? Super ToolKit is the private, free iLovePDF alternative. Comparison https://supertoolkit.app/smallpdf-alternative/ https://supertoolkit.app/smallpdf-alternative/ Wed, 25 Mar 2026 00:00:00 GMT Blocked by Smallpdf 2 free tasks per day limit? Super ToolKit gives you unlimited PDF merging, compression, and conversion completely free and private. Comparison https://supertoolkit.app/123apps-alternative/ https://supertoolkit.app/123apps-alternative/ Wed, 25 Mar 2026 00:00:00 GMT Looking for a cleaner, ad-free alternative to 123apps? Super ToolKit offers MP4 to MP3, Dolby audio enhancer, audio trim, pitch shifter, and video tools locally. Comparison https://supertoolkit.app/crop-pdf/ https://supertoolkit.app/crop-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Trim unwanted white borders, header/footer margins, and crop PDF page areas with custom point coordinates directly on your device. PDF & Documents https://supertoolkit.app/rotate-pdf/ https://supertoolkit.app/rotate-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Rotate all or odd/even PDF pages 90°, 180°, or 270° clockwise with permanent orientation saving and zero quality loss. PDF & Documents https://supertoolkit.app/page-numbers-pdf/ https://supertoolkit.app/page-numbers-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Stamp custom page numbers, Page X of Y formats, or roman numerals at top/bottom document margins with font size and offset controls. PDF & Documents https://supertoolkit.app/watermark-pdf/ https://supertoolkit.app/watermark-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Stamp angled confidential, draft, or custom text watermarks with opacity, color, and font size controls across all PDF pages. PDF & Documents https://supertoolkit.app/flatten-pdf/ https://supertoolkit.app/flatten-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Permanently bake interactive form fields, checkboxes, and annotations into static document layers to prevent tampering. PDF & Documents https://supertoolkit.app/remove-metadata-pdf/ https://supertoolkit.app/remove-metadata-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Strip hidden author identities, software fingerprints, creation timestamps, and printer metadata for complete document privacy. PDF & Documents https://supertoolkit.app/redact-pdf/ https://supertoolkit.app/redact-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Permanently black out confidential numbers, personal information, and sensitive text regions directly on the document canvas. PDF & Documents https://supertoolkit.app/sign-pdf/ https://supertoolkit.app/sign-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Apply digital signature certificates, authorized visual approval stamps, and local audit timestamps directly to PDF documents. PDF & Documents https://supertoolkit.app/extract-images-pdf/ https://supertoolkit.app/extract-images-pdf/ Tue, 24 Mar 2026 12:00:00 GMT Extract and render high-resolution raster images from PDF pages into lossless PNG files with instant individual downloads. PDF & Documents https://supertoolkit.app/pdf-to-text/ https://supertoolkit.app/pdf-to-text/ Tue, 24 Mar 2026 12:00:00 GMT Extract raw text, paragraphs, and formatted lines from PDF documents into copyable plaintext with 1-click clipboard copy and TXT download. PDF & Documents https://supertoolkit.app/category/pdf-document/ https://supertoolkit.app/category/pdf-document/ Tue, 24 Mar 2026 12:00:00 GMT Private client-side PDF tools: PDF merger, page splitter, PDF to Word (DOCX) converter, password protect, and unlock utilities. PDF & Documents https://supertoolkit.app/pdf-to-txt/ https://supertoolkit.app/pdf-to-txt/ Tue, 24 Mar 2026 12:00:00 GMT Extract raw text, paragraphs, and content from any PDF document into clean plain text (.txt). 100% private, works offline, instant download. Format Converters https://supertoolkit.app/pdf-merger/ https://supertoolkit.app/pdf-merger/ Sun, 22 Mar 2026 11:30:00 GMT Combine multiple PDF documents into a single organized file with drag-and-drop reordering, page counter, and instant download. PDF & Documents https://supertoolkit.app/mp4-to-mp3/ https://supertoolkit.app/mp4-to-mp3/ Fri, 20 Mar 2026 14:00:00 GMT Extract and convert any video file (MP4, WebM, MKV, MOV, AVI, WMV, FLV) into high-fidelity audio (MP3, WAV, AAC, FLAC, M4A, OGG) with customizable bitrate and quality. Audio & Video https://supertoolkit.app/mkv-to-mp3/ https://supertoolkit.app/mkv-to-mp3/ Fri, 20 Mar 2026 14:00:00 GMT Extract high-bitrate 320kbps MP3 audio from MKV video files directly in your browser. 100% private WebAssembly processing, no file size limits, works offline. Format Converters https://supertoolkit.app/mov-to-mp3/ https://supertoolkit.app/mov-to-mp3/ Fri, 20 Mar 2026 14:00:00 GMT Extract crystal-clear MP3 audio tracks from Apple MOV files in-browser. Zero server uploads, no registration, unlimited file size, and 100% privacy. Format Converters https://supertoolkit.app/webm-to-mp3/ https://supertoolkit.app/webm-to-mp3/ Fri, 20 Mar 2026 14:00:00 GMT Quickly convert WEBM video and audio recordings to MP3 format online. High-speed local browser execution, no software install, no tracking. Format Converters https://supertoolkit.app/about/ https://supertoolkit.app/about/ Fri, 20 Mar 2026 08:30:00 GMT Learn how Super ToolKit eliminates intrusive ads, account registrations, and server-side uploads with modern WebAssembly and Web Audio API architecture. About https://supertoolkit.app/images-to-pdf/ https://supertoolkit.app/images-to-pdf/ Thu, 19 Mar 2026 15:10:00 GMT Convert and combine any image formats (JPG, PNG, WebP, GIF, BMP, SVG, AVIF, TIFF) into a high-end PDF with custom page rotation, reordering, and file renaming. PDF & Documents https://supertoolkit.app/jpg-to-pdf/ https://supertoolkit.app/jpg-to-pdf/ Thu, 19 Mar 2026 15:10:00 GMT Combine multiple JPG photos into a single professional PDF document. Adjust margins, page orientation, reorder pages, 100% private and offline. Format Converters https://supertoolkit.app/png-to-pdf/ https://supertoolkit.app/png-to-pdf/ Thu, 19 Mar 2026 15:10:00 GMT Create multi-page PDF files from PNG graphics and scans. Fast client-side compilation, no registration, no watermarks. Format Converters https://supertoolkit.app/support/ https://supertoolkit.app/support/ Wed, 18 Mar 2026 17:00:00 GMT Customer helpdesk and guidance for all free converters, format documentation, and feature request assistance. Support https://supertoolkit.app/cookies/ https://supertoolkit.app/cookies/ Sun, 15 Mar 2026 08:50:00 GMT Full transparency regarding client-side local storage and Google Consent Mode v2 analytics. Zero advertising tracking cookies. Legal https://supertoolkit.app/privacy/ https://supertoolkit.app/privacy/ Sun, 15 Mar 2026 08:50:00 GMT Super ToolKit privacy commitments: zero server file uploads, on-device RAM processing, and no third-party data tracking. Legal https://supertoolkit.app/vocal-remover/ https://supertoolkit.app/vocal-remover/ Sun, 15 Mar 2026 08:10:00 GMT Isolate or remove vocals from songs to create karaoke instrumentals or acapella vocal tracks with stereo phase cancellation and bass preservation. Audio & Video https://supertoolkit.app/volume-normalizer/ https://supertoolkit.app/volume-normalizer/ Sat, 14 Mar 2026 17:00:00 GMT Boost audio volume up to +24dB, normalize peak loudness to prevent clipping distortion, and downmix multichannel audio to stereo or mono. Audio & Video https://supertoolkit.app/pitch-tempo-shifter/ https://supertoolkit.app/pitch-tempo-shifter/ Sat, 14 Mar 2026 12:00:00 GMT Change the pitch, key, and playback speed of any song or voice recording independently by semitones and cents with high-fidelity MP3/WAV export. Audio & Video https://supertoolkit.app/audio-8d-panner/ https://supertoolkit.app/audio-8d-panner/ Thu, 12 Mar 2026 14:20:00 GMT Transform regular stereo audio into immersive 3D/8D rotating surround sound with binaural panning, room acoustic simulation, and export options. Audio & Video https://supertoolkit.app/bass-booster-eq/ https://supertoolkit.app/bass-booster-eq/ Wed, 11 Mar 2026 18:15:00 GMT Boost low-end sub bass, customize 10-band frequency equalizer levels, and shape sound profiles with genre presets and lossless audio export. Audio & Video https://supertoolkit.app/bpm-detector/ https://supertoolkit.app/bpm-detector/ Wed, 11 Mar 2026 15:30:00 GMT Automatically detect beats per minute (BPM) from music tracks or tap to find exact tempo with built-in metronome and rhythmic frequency analyzer. Audio & Video https://supertoolkit.app/audio-spectrogram-waveform/ https://supertoolkit.app/audio-spectrogram-waveform/ Tue, 10 Mar 2026 16:45:00 GMT Generate high-resolution visual frequency spectrograms and artistic waveform graphics from any sound with customizable color themes and PNG/SVG export. Audio & Video https://supertoolkit.app/data-analyzer/ https://supertoolkit.app/data-analyzer/ Sun, 08 Mar 2026 07:15:00 GMT Inspect, profile, and compute summary metrics (mean, median, min, max, null counts) for CSV datasets and spreadsheets with export to JSON, TSV, or Markdown tables. Data & Spreadsheets https://supertoolkit.app/category/data-files/ https://supertoolkit.app/category/data-files/ Sun, 08 Mar 2026 07:15:00 GMT Bidirectional CSV to JSON converter, JSON to Excel/CSV, dataset profiler, and professional invoice generator. Data & Spreadsheets https://supertoolkit.app/audio-to-audio/ https://supertoolkit.app/audio-to-audio/ Thu, 05 Mar 2026 10:15:00 GMT Convert any audio file (MP3, WAV, AAC, FLAC, M4A, OGG, Opus, AIFF) into all major audio formats with custom bitrate, sample rate, and channel controls. Audio & Video https://supertoolkit.app/flac-to-mp3/ https://supertoolkit.app/flac-to-mp3/ Thu, 05 Mar 2026 10:15:00 GMT Convert lossless FLAC audio files to universal MP3 format with pristine 320kbps audio quality. 100% private local execution in your browser. Format Converters https://supertoolkit.app/wav-to-mp3/ https://supertoolkit.app/wav-to-mp3/ Thu, 05 Mar 2026 10:15:00 GMT Reduce uncompressed WAV file sizes by up to 90% with our fast WAV to MP3 converter. Private in-browser processing, zero server storage. Format Converters https://supertoolkit.app/m4a-to-mp3/ https://supertoolkit.app/m4a-to-mp3/ Thu, 05 Mar 2026 10:15:00 GMT Convert iTunes, voice memos, and Apple M4A recordings to MP3 format with zero quality degradation. Completely client-side, unlimited conversions. Format Converters https://supertoolkit.app/ogg-to-mp3/ https://supertoolkit.app/ogg-to-mp3/ Thu, 05 Mar 2026 10:15:00 GMT Convert open-source OGG Vorbis audio tracks to universal MP3 format. Local browser execution, no downloads required, 100% confidential. Format Converters https://supertoolkit.app/terms/ https://supertoolkit.app/terms/ Sat, 28 Feb 2026 12:00:00 GMT Terms and fair use policies for the Super ToolKit web application and client-side conversion utilities. Legal https://supertoolkit.app/pdf-to-doc/ https://supertoolkit.app/pdf-to-doc/ Sun, 22 Feb 2026 16:50:00 GMT Transform any PDF document into an editable Microsoft Word (.docx) file with headings, bullet points, customizable typography, and custom file renaming. PDF & Documents https://supertoolkit.app/pdf-to-docx/ https://supertoolkit.app/pdf-to-docx/ Sun, 22 Feb 2026 16:50:00 GMT Convert read-only PDF files into editable Microsoft Word DOCX documents. Extract text, formatting, and layout structure locally without cloud uploads. Format Converters https://supertoolkit.app/image-compressor/ https://supertoolkit.app/image-compressor/ Fri, 20 Feb 2026 12:00:00 GMT Shrink JPG, PNG, and WebP images up to 80% without visible quality loss using in-browser hardware canvas acceleration. Image & Graphics https://supertoolkit.app/category/image-ai/ https://supertoolkit.app/category/image-ai/ Fri, 20 Feb 2026 12:00:00 GMT Smart lossy/lossless image compressor, format converter, resizer, and SVG vector manipulation studio with zero server uploads. Image & Graphics https://supertoolkit.app/regex-tester-studio/ https://supertoolkit.app/regex-tester-studio/ Thu, 19 Feb 2026 17:30:00 GMT Real-time regular expression tester with capture group breakdown, syntax error validation, common pattern presets, and regex substitution. Completely free and works offline. Text & Writing https://supertoolkit.app/category/text-developer/ https://supertoolkit.app/category/text-developer/ Thu, 19 Feb 2026 17:30:00 GMT Interactive regex tester, SHA-256 hash checksums, word & case converter, text diff checker, and live Markdown studio. Text & Writing https://supertoolkit.app/pdf-splitter/ https://supertoolkit.app/pdf-splitter/ Wed, 18 Feb 2026 14:15:00 GMT Visually organize, reorder, rotate, extract specific page ranges, or split every page into separate PDF documents with instant ZIP download. PDF & Documents https://supertoolkit.app/audio-reverser/ https://supertoolkit.app/audio-reverser/ Wed, 18 Feb 2026 13:40:00 GMT Reverse songs, voice recordings, and sound effects with speed/pitch controls, reverse reverb swell, ping-pong loops, and lossless WAV or MP3 export. Audio & Video https://supertoolkit.app/image-converter-resizer/ https://supertoolkit.app/image-converter-resizer/ Mon, 16 Feb 2026 13:30:00 GMT Batch convert images between WebP, PNG, JPEG, and AVIF with custom pixel scaling, aspect ratio locking, quality control, and ZIP download. Image & Graphics https://supertoolkit.app/heic-to-jpg/ https://supertoolkit.app/heic-to-jpg/ Mon, 16 Feb 2026 13:30:00 GMT Convert Apple HEIC photos to standard JPG format online. High-speed client-side conversion, zero server uploads, privacy guaranteed, batch support. Format Converters https://supertoolkit.app/heic-to-png/ https://supertoolkit.app/heic-to-png/ Mon, 16 Feb 2026 13:30:00 GMT Convert iPhone HEIC images to crisp, lossless PNG format in your browser. No file size restrictions, no cloud uploads, completely confidential. Format Converters https://supertoolkit.app/webp-to-png/ https://supertoolkit.app/webp-to-png/ Mon, 16 Feb 2026 13:30:00 GMT Convert modern WebP images into universal PNG format with alpha transparency intact. 100% private client-side processing, no subscriptions. Format Converters https://supertoolkit.app/webp-to-jpg/ https://supertoolkit.app/webp-to-jpg/ Mon, 16 Feb 2026 13:30:00 GMT Transform Google WebP graphics into standard JPEG files. Works 100% locally in your browser, no registration, no file size caps. Format Converters https://supertoolkit.app/png-to-webp/ https://supertoolkit.app/png-to-webp/ Mon, 16 Feb 2026 13:30:00 GMT Reduce website image file size by up to 80% by converting PNG to WebP format. Retain crisp transparency, optimize Core Web Vitals, 100% private. Format Converters https://supertoolkit.app/jpg-to-png/ https://supertoolkit.app/jpg-to-png/ Mon, 16 Feb 2026 13:30:00 GMT Easily convert JPEG photos to PNG format online. No software installation, no watermarks, completely free and private. Format Converters https://supertoolkit.app/audio-trimmer/ https://supertoolkit.app/audio-trimmer/ Sun, 15 Feb 2026 11:20:00 GMT Precision visual waveform audio cutter with millisecond trim controls, audio fade-in/fade-out, volume gain, and high-bitrate MP3/WAV export. Audio & Video https://supertoolkit.app/json-to-excel/ https://supertoolkit.app/json-to-excel/ Sat, 14 Feb 2026 09:45:00 GMT Convert JSON arrays or nested objects into organized Microsoft Excel spreadsheets and CSV files with automatic flattening and live preview. Data & Spreadsheets https://supertoolkit.app/json-to-xlsx/ https://supertoolkit.app/json-to-xlsx/ Sat, 14 Feb 2026 09:45:00 GMT Transform raw JSON arrays into native Microsoft Excel (.xlsx) workbooks with formatted headers. 100% private in-browser conversion. Format Converters https://supertoolkit.app/qr-code-studio/ https://supertoolkit.app/qr-code-studio/ Thu, 12 Feb 2026 18:00:00 GMT Generate customizable, high-resolution QR codes for websites, Wi-Fi networks, emails, and phone numbers with custom colors and instant PNG/SVG download. Utilities & Codes https://supertoolkit.app/category/utilities/ https://supertoolkit.app/category/utilities/ Thu, 12 Feb 2026 18:00:00 GMT Custom QR Code studio, Base64 encoder/decoder, and daily privacy-first digital utilities running 100% in your browser. Utilities & Codes https://supertoolkit.app/invoice-generator/ https://supertoolkit.app/invoice-generator/ Tue, 10 Feb 2026 16:00:00 GMT Create professional, print-ready invoices and receipts with multi-currency support, tax/discount calculations, and instant PDF download. Completely free and works offline. Utilities & Codes https://supertoolkit.app/age-calculator/ https://supertoolkit.app/age-calculator/ Tue, 10 Feb 2026 10:00:00 GMT Calculate exact chronological age down to the second, Western & Chinese zodiac signs, and life milestones. Date & Calculators https://supertoolkit.app/category/date-time/ https://supertoolkit.app/category/date-time/ Tue, 10 Feb 2026 10:00:00 GMT Exact chronological age calculator down to seconds, zodiac milestone signs, birthday countdowns, and unit converter. Date & Calculators https://supertoolkit.app/markdown-studio/ https://supertoolkit.app/markdown-studio/ Sun, 08 Feb 2026 15:40:00 GMT Real-time split-screen Markdown editor with GitHub-flavored rendering, word statistics, and 1-click export to HTML, PDF, or Markdown files. Completely free and works offline. Text & Writing https://supertoolkit.app/unit-converter/ https://supertoolkit.app/unit-converter/ Thu, 05 Feb 2026 12:30:00 GMT High-precision metric and imperial converter for length, mass, temperature, digital data, speed, and time. Utilities & Codes https://supertoolkit.app/csv-json-converter/ https://supertoolkit.app/csv-json-converter/ Mon, 02 Feb 2026 10:30:00 GMT Convert CSV/TSV spreadsheets to JSON arrays or transform JSON objects to CSV tables with custom delimiters, type detection, and interactive data grid. Free and works offline. Data & Spreadsheets https://supertoolkit.app/csv-to-json/ https://supertoolkit.app/csv-to-json/ Mon, 02 Feb 2026 10:30:00 GMT Convert CSV spreadsheets to structured JSON arrays and objects. Supports custom delimiters, type auto-detection, 100% private in-browser execution. Format Converters https://supertoolkit.app/json-to-csv/ https://supertoolkit.app/json-to-csv/ Mon, 02 Feb 2026 10:30:00 GMT Convert complex JSON arrays and objects into standard CSV files for Excel and Google Sheets. Fast, free, completely client-side. Format Converters https://supertoolkit.app/base64-studio/ https://supertoolkit.app/base64-studio/ Fri, 30 Jan 2026 12:00:00 GMT Encode any image, audio, or document to Base64 data URIs, or decode Base64 strings back to downloadable files with live preview. Completely free and works offline. Data & Spreadsheets https://supertoolkit.app/svg-converter/ https://supertoolkit.app/svg-converter/ Wed, 28 Jan 2026 11:45:00 GMT Convert SVG vector files or raw code to high-resolution PNG, JPEG, and WebP at 1x, 2x, 4x, 8x, or custom dimensions with transparency controls. 100% free and works offline. Image & Graphics https://supertoolkit.app/svg-to-png/ https://supertoolkit.app/svg-to-png/ Wed, 28 Jan 2026 11:45:00 GMT Rasterize scalable vector graphics (SVG) into transparent PNG at custom resolutions (1x, 2x, 4x, 8x). 100% client-side vector rendering. Format Converters https://supertoolkit.app/json-cleaner/ https://supertoolkit.app/json-cleaner/ Sun, 25 Jan 2026 16:40:00 GMT Format, validate, repair common syntax slips, sort keys alphabetically, and minify JSON with real-time structural inspection. Data & Spreadsheets https://supertoolkit.app/hash-checksum-tool/ https://supertoolkit.app/hash-checksum-tool/ Thu, 22 Jan 2026 10:00:00 GMT Calculate cryptographic SHA-256, SHA-512, SHA-384, SHA-1, and MD5 hashes for text and files of any size, with 1-click checksum verification. Completely free and works offline. Utilities & Codes https://supertoolkit.app/word-counter-case/ https://supertoolkit.app/word-counter-case/ Tue, 20 Jan 2026 09:15:00 GMT Real-time word, character, sentence count, reading time calculator, and one-click case converter (Title Case, UPPERCASE, camelCase, snake_case). Text & Writing https://supertoolkit.app/birthday-calculator/ https://supertoolkit.app/birthday-calculator/ Thu, 15 Jan 2026 14:00:00 GMT Calculate live countdowns to your next birthday, multi-year weekend forecast, and milestone tracking. Date & Calculators https://supertoolkit.app/pdf-protect-unlock/ https://supertoolkit.app/pdf-protect-unlock/ Wed, 14 Jan 2026 09:20:00 GMT Encrypt PDFs with password protection or unlock password-protected PDF files directly on your device. Completely free and works offline. PDF & Documents https://supertoolkit.app/text-diff-tool/ https://supertoolkit.app/text-diff-tool/ Mon, 12 Jan 2026 16:20:00 GMT Visual side-by-side and unified text comparison tool with character-by-character diffing, whitespace controls, and patch export. Completely free and works offline. Text & Writing https://supertoolkit.app/color-palette-studio/ https://supertoolkit.app/color-palette-studio/ Mon, 05 Jan 2026 14:10:00 GMT Extract harmonic color palettes from any photo with live eyedropper, convert between HEX/RGB/HSL/CMYK, and test WCAG 2.1 contrast accessibility. Free and works offline. Image & Graphics