# SodaTool > SodaTool (苏打在线工具) is a free online toolbox: 70+ tools for development, file conversion, office documents, AI generation, and everyday utilities. No sign-up, no ads; file-based tools process data locally in the browser whenever possible. Languages: Chinese (default, no URL prefix, e.g. /development/json-formatter), English (/en/...), Japanese (/ja/...). All tools are free to use. Site search is available on the homepage. ## Developer Tools - [JSON Formatter](https://www.sodatool.com/en/development/json-formatter): Format, minify, escape, and convert Unicode in JSON - [JSON Editor](https://www.sodatool.com/en/development/json-editor): Visually edit JSON data, supports code mode and tree mode with real-time sync - [HTML Formatter](https://www.sodatool.com/en/development/html-formatter): Quickly format and beautify HTML code - [JavaScript Formatter](https://www.sodatool.com/en/development/js-formatter): Quickly format and beautify JavaScript code, supports ES6+ - [CSS Formatter](https://www.sodatool.com/en/development/css-formatter): Quickly format and beautify CSS code - [SQL Formatter](https://www.sodatool.com/en/development/sql-formatter): Quickly format and beautify SQL statements - [HTTP Tester](https://www.sodatool.com/en/development/http-tester): Test HTTP/HTTPS APIs online, supports GET, POST, PUT, DELETE and more - [WebSocket Tester](https://www.sodatool.com/en/development/websocket-tester): Test WebSocket connections online, view message history in real-time - [Regex Tester](https://www.sodatool.com/en/development/regex-tester): Test regular expressions online with real-time match results - [File Hash Calculator](https://www.sodatool.com/en/development/file-hash): Calculate MD5, SHA-1, SHA-256 hashes of files, processed locally without upload - [Text Encoder/Decoder](https://www.sodatool.com/en/development/text-codec): Encode/decode Base64, URL, HTML entities, and generate MD5 hashes - [Text Diff](https://www.sodatool.com/en/development/text-diff): Compare two texts and highlight differences, supports line-by-line and character-by-character comparison - [Cron Expression Generator](https://www.sodatool.com/en/development/cron-generator): Generate and parse Cron expressions with second precision, preview next 5 execution times - [JWT Parser](https://www.sodatool.com/en/development/jwt-parser): Parse JWT tokens, view Header, Payload, and Signature information - [Nginx Config Generator](https://www.sodatool.com/en/development/nginx-config-generator): Generate various Nginx configuration files online, covering basic, security, advanced, and application scenarios - [JWT Secret Generator](https://www.sodatool.com/en/development/jwt-secret-generator): Generate secure random JWT secrets with selectable formats, lengths, and quantities - [UUID Generator](https://www.sodatool.com/en/development/uuid-generator): Batch generate RFC 4122 compliant UUID v4 identifiers - [.gitignore Generator](https://www.sodatool.com/en/development/gitignore-generator): Select multiple project types and generate a merged, deduplicated .gitignore template ## Conversion Tools - [Unix Timestamp Converter](https://www.sodatool.com/en/convert/timestamp-converter): Convert between Unix timestamps and human-readable dates, supports seconds and milliseconds - [JSON to Excel](https://www.sodatool.com/en/convert/json-to-excel): Convert JSON data to Excel spreadsheet files - [JSON to PHP Array](https://www.sodatool.com/en/convert/json-to-php): Convert JSON format to PHP array format in real-time - [JSON to TypeScript](https://www.sodatool.com/en/convert/json-to-ts): Convert JSON format to TypeScript interface definitions in real-time - [JSON to Go Struct](https://www.sodatool.com/en/convert/json-to-go): Convert JSON format to Go language struct definitions in real-time - [JSON ⇄ XML](https://www.sodatool.com/en/convert/json-to-xml): Convert between JSON and XML formats, supports bidirectional conversion - [JSON ⇄ YAML](https://www.sodatool.com/en/convert/json-to-yaml): Convert between JSON and YAML formats, supports bidirectional conversion - [JSON ⇄ Query String](https://www.sodatool.com/en/convert/json-to-query): Convert between JSON and URL Query String formats with automatic encoding/decoding - [Docker Run ⇄ Compose](https://www.sodatool.com/en/convert/docker-run-to-compose): Convert between Docker Run commands and Docker Compose configuration files - [Excel to CSV](https://www.sodatool.com/en/convert/excel-to-csv): Convert Excel files to CSV format, supports sheet selection and custom delimiters - [CSV to Excel](https://www.sodatool.com/en/convert/csv-to-excel): Convert CSV files to Excel format, supports custom delimiters and sheet names - [CSV/Excel to JSON](https://www.sodatool.com/en/convert/csv-excel-to-json): Convert CSV or Excel files to JSON format, supports multiple sheets - [Image Base64 Encoder](https://www.sodatool.com/en/convert/image-base64): Convert between images and Base64 encoding, supports upload, drag & drop, and paste - [Batch Image Format Converter](https://www.sodatool.com/en/convert/image-format): Batch convert image formats, supports JPG, PNG, BMP, GIF, WebP, and HEIC - [Color Converter](https://www.sodatool.com/en/convert/color-converter): Convert between HEX, RGB, HSL, CMYK and other color formats - [Markdown to PDF](https://www.sodatool.com/en/convert/markdown-to-pdf): Upload or paste Markdown, preview true A4 pagination, and download or print polished PDFs with professional themes - [Multi-format Table Converter](https://www.sodatool.com/en/convert/table-converter): Convert between Markdown, CSV, Excel, and HTML tables with upload, paste, copy, and download support ## Media Tools - [Audio Format Converter](https://www.sodatool.com/en/media/audio-converter): Batch convert MP3, WAV, M4A, FLAC, OGG, and other audio formats entirely in your browser - [Audio Trimmer](https://www.sodatool.com/en/media/audio-trimmer): Drag across a visual waveform, preview the selection, and export it as MP3, WAV, M4A, FLAC, or OGG - [Audio Merger](https://www.sodatool.com/en/media/audio-merger): Arrange multiple audio files and merge them into one MP3, WAV, M4A, FLAC, or OGG file - [Audio Compressor](https://www.sodatool.com/en/media/audio-compressor): Adjust compression and quality to make MP3, WAV, M4A, FLAC, and other audio smaller as MP3, M4A, or OGG - [Extract Audio from Video](https://www.sodatool.com/en/media/video-audio-extractor): Extract an audio track from MP4, MOV, MKV, WebM, AVI, and other videos with selectable format and quality - [Video Frame Extractor](https://www.sodatool.com/en/media/video-frame-extractor): Play or seek through a video and save the current frame as a PNG, JPG, or WebP image - [Video Thumbnail Sheet Generator](https://www.sodatool.com/en/media/video-thumbnail-sheet): Capture frames evenly across a video and create a thumbnail sheet with file details and timestamps - [Video Clip Cutter](https://www.sodatool.com/en/media/video-trimmer): Choose a video's start and end times, preview the range, and save the clip as MP4 or WebM - [Video Clip Merger](https://www.sodatool.com/en/media/video-merger): Add multiple video clips, drag to arrange them, normalize the frame, and merge them into an MP4 or WebM file - [Video Metadata Remover](https://www.sodatool.com/en/media/video-metadata-remover): Batch-remove time, location, device, title, comment, and other metadata from videos - [Video Compressor](https://www.sodatool.com/en/media/video-compressor): Adjust quality and resolution to compress MP4, MOV, MKV, WebM, and other videos into smaller MP4 files, processed locally in your browser - [Video Reverser](https://www.sodatool.com/en/media/video-reverser): Drag the timeline to pick a clip and reverse both picture and sound into a fun backwards video, processed locally in your browser - [Video Speed Changer](https://www.sodatool.com/en/media/video-speed-changer): Speed up or slow down videos from 0.25x slow motion to 16x fast-forward with unchanged audio pitch, processed locally in your browser - [Video to GIF Converter](https://www.sodatool.com/en/media/video-to-gif): Turn up to 15 seconds of video into an animated GIF with custom frame rate, width, and quality, processed locally in your browser ## Utilities - [QR Code Generator & Reader](https://www.sodatool.com/en/tool/qrcode): Generate QR code images or decode QR code content, with custom size, color, and error correction - [Temporary File Upload](https://www.sodatool.com/en/tool/file-transfer): Upload and share temporary files with a download link; sign in for up to 1GB uploads and 30 downloads - [Temporary Text Share](https://www.sodatool.com/en/tool/text-share): Encrypt temporary text and share it with an optional access code and custom expiry - [Screen Recorder](https://www.sodatool.com/en/tool/screen-recorder): Record your screen, app windows, or browser tabs online, supports system audio and microphone - [M3U8 Video Downloader](https://www.sodatool.com/en/tool/m3u8-downloader): Download M3U8 videos online with multi-threaded download, visual progress, and retry on failure - [Image Compressor](https://www.sodatool.com/en/tool/image-compress): Compress image size online, adjust dimensions and quality with real-time comparison - [App Icon Generator](https://www.sodatool.com/en/tool/app-icon-generator): Upload one image and generate all iOS, Android, macOS, watchOS, and Web app icons in one click - [Image EXIF Viewer](https://www.sodatool.com/en/tool/image-exif): View photo EXIF metadata including camera, time, and GPS location - [Image Watermark](https://www.sodatool.com/en/tool/image-watermark): Add text or image watermarks with custom position, opacity, and size - [Password Generator](https://www.sodatool.com/en/tool/password-generator): Generate secure random passwords with custom length and character types, batch generation supported - [Date Calculator](https://www.sodatool.com/en/tool/date-calculator): Calculate the number of days between two dates, or find a date before/after a given number of days - [Image Color Picker](https://www.sodatool.com/en/tool/image-color-picker): Upload or paste an image, click to extract pixel colors in HEX, RGB, HSL and more - [LED Text Scroller](https://www.sodatool.com/en/tool/led-text-scroller): Full-screen scrolling LED text banner, custom speed and color, perfect for events and concerts - [Todo List](https://www.sodatool.com/en/tool/todo-list): Simple task management tool, add, edit, and delete tasks with automatic local storage - [Pomodoro Timer](https://www.sodatool.com/en/tool/pomodoro-timer): Time management tool based on the Pomodoro Technique to help you stay focused and boost productivity - [IP Address Lookup](https://www.sodatool.com/en/tool/ip-lookup): Look up IP address location, supports multiple authoritative data sources for cross-verification - [URL Shortener](https://www.sodatool.com/en/tool/url-shortener): Convert long URLs to short links, with QR code generation and visit statistics - [Markdown Preview](https://www.sodatool.com/en/tool/markdown-preview): Preview Markdown rendering in real-time, supports copying Markdown, HTML, and rich text ## Office Tools - [PDF Merger](https://www.sodatool.com/en/office/pdf-merger): Merge multiple PDF files into one - [PDF Splitter](https://www.sodatool.com/en/office/pdf-splitter): Split PDF files into multiple documents or extract specific pages - [PDF Watermark](https://www.sodatool.com/en/office/pdf-watermark): Add text or image watermarks to PDF files - [PDF Page Remover](https://www.sodatool.com/en/office/pdf-delete-pages): Remove specific pages from PDF files - [PDF Rotator](https://www.sodatool.com/en/office/pdf-rotate): Rotate pages in PDF files - [PDF Page Reorder](https://www.sodatool.com/en/office/pdf-reorder): Drag and drop to reorder PDF pages and generate a new PDF file - [PDF Compressor](https://www.sodatool.com/en/office/pdf-compress): Compress PDF file size with multiple compression levels - [PDF Signature](https://www.sodatool.com/en/office/pdf-signature): Add handwritten electronic signatures to every page of PDF files, with custom position and size - [PDF to Image](https://www.sodatool.com/en/office/pdf-to-image): Convert PDF files to image format - [Image to PDF](https://www.sodatool.com/en/office/image-to-pdf): Merge and convert multiple images into a PDF file - [Excel Merger](https://www.sodatool.com/en/office/excel-merge): Merge multiple Excel files into one, supports merging by sheets or by rows ## AI Tools - [AI Resume Generator](https://www.sodatool.com/en/ai/resume-generator): Use AI to generate professional resumes, fill in basic info to create quickly, export to PDF and HTML - [AI Weekly Report](https://www.sodatool.com/en/ai/weekly-report): Enter work highlights, AI generates well-formatted weekly reports to boost efficiency - [AI Job Description Generator](https://www.sodatool.com/en/ai/jd-generator): Enter job requirements, AI generates professional job descriptions to improve HR efficiency - [AI PPT Outline Generator](https://www.sodatool.com/en/ai/ppt-outline): Enter presentation topic, AI generates well-structured PPT outlines to quickly build presentation frameworks - [AI Cartoon Stickers](https://www.sodatool.com/en/ai/ai-sticker): Upload a photo, AI generates custom cartoon sticker packs in multiple art styles - [AI Email Polisher](https://www.sodatool.com/en/ai/email-polisher): Paste your email draft, pick a tone, and AI polishes it into a professional, well-phrased business email - [AI Speech Generator](https://www.sodatool.com/en/ai/speech-generator): Pick the occasion, audience, and tone—AI writes ready-to-deliver speeches for weddings, parties, ceremonies, and more - [AI Xiaohongshu Copywriter](https://www.sodatool.com/en/ai/xhs-copywriter): Enter a topic, pick a niche and tone—AI writes RED-style notes with catchy titles, Emoji layout, and hashtags ## Life Tools - [Currency Converter](https://www.sodatool.com/en/life/currency-converter): Real-time exchange rate conversion, supports 100+ currencies - [BMI Calculator](https://www.sodatool.com/en/life/bmi-calculator): Calculate Body Mass Index (BMI) to assess weight health status - [BMR Calculator](https://www.sodatool.com/en/life/bmr-calculator): Calculate Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) for scientific weight management - [Investment Calculator](https://www.sodatool.com/en/life/investment-calculator): Calculate investment returns, compound growth, and regular investment yields - [Loan Calculator](https://www.sodatool.com/en/life/loan-calculator): Calculate monthly payments, interest, and repayment schedules for mortgages, car loans, and more - [Blood Type Calculator](https://www.sodatool.com/en/life/blood-type-calculator): Look up blood type inheritance rules, calculate possible blood types and probabilities for children - [Online Translator](https://www.sodatool.com/en/life/translator): Translate between Chinese, English, and Japanese with automatic source language detection ## Articles - [Articles & guides](https://www.sodatool.com/en/articles): how-to guides and tool comparisons ## Other - [About](https://www.sodatool.com/en/about): about SodaTool - [Sitemap](https://www.sodatool.com/sitemap.xml)