Code Formatter & 200+ Free Online Tools
Format code, convert files, edit media and more — free, fast and easy to use.
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Code Formatters
Format and beautify Java, Python, JavaScript, JSON, HTML and more; adjust indentation, spacing and line breaks.
JSON & Data Tools
Inspect, compare and validate JSON; test JSONPath expressions, or convert data to CSV, YAML and XML.
Spreadsheet Tools
Open and edit CSV or Excel sheets, format tabular text, and convert CSV to Excel or SQL.
Markdown Tools
Write and preview Markdown, render Mermaid diagrams, and convert Markdown, HTML and tables between formats.
Text Tools
Compare passages, count words and keywords, sort or replace lines, and view DOCX text.
Audio Conversion & Playback
Convert between MP3, WAV, FLAC and more, play audio or raw PCM, and inspect or edit audio metadata.
Audio Editing & Effects
Trim, join or split recordings, remove silence or noise, and adjust volume, speed, pitch or channels.
Speech Tools
Transcribe audio to text, generate speech from text, or record your voice in the browser.
Video Tools
Convert and compress video, trim or join clips, resize frames, and extract audio.
Video Playback & Recording
Play local or streaming video, record your screen or camera, and use your camera as an online mirror.
PDF Tools
Compress or merge PDFs, split and rearrange pages, convert pages to images, and view or compare documents.
Image Tools
Convert image formats, resize or crop photos, compress files, compare pictures, and extract text with OCR.
Image Creation
Capture and beautify screenshots, turn text into images or GIFs, draw on a whiteboard, and create word clouds or favicons.
Subtitle Tools
Edit SRT or VTT captions with a video preview, shift timing, convert formats, and manage subtitle tracks.
Archive Tools
Open ZIP, 7Z, RAR or TAR files, extract selected contents, and create new archives with optional ZIP/7Z passwords.
Encoders | Decoders
Encode and decode Base64 or Base32, escape URLs, HTML and Unicode text, and inspect JWT contents.
- Base64 Encode
- URL Encode
- Base32 Encode
- Base58 Encode
- Base85 Encode
- URL Parser
- HTML Entity Escape
- Unicode Escape
- JWT Decoder & Verifier
- String Escape
More tools
Number Tools
Convert number bases and values between binary, decimal and hex; turn numbers into words or text into binary.
Calculators
Work out percentages and fractions, summarize statistics, and calculate grades, discounts or aspect ratios.
Time Tools
Show an online clock, run a countdown or stopwatch, and calculate dates, ages or time-zone differences.
Network Tools
Check your IP and IPv6 connection, inspect HTTP requests or HAR files, and calculate CIDR address ranges.
Unit Conversions
Convert length, weight, temperature, data storage and other units.
Color Tools
Convert HEX, RGB and HSL values, extract colors from an image, check contrast, or test your display with solid colors.
QR Codes & Barcodes
Generate and scan QR codes or barcodes, including QR codes for links and Wi-Fi networks.
Developer & Security Tools
Generate hashes, UUIDs and passwords, test regular expressions, create URL slugs and check file permissions.
- Hash Generator
- UUID Generator
- UUID v7 Generator
- ULID Generator
- Regex Tester
- Slug Generator
- HMAC Generator
- Unix Permissions Calculator
- SQL IN List Converter
- Random Number Generator
More tools
Utility Tools
Check screen resolution and refresh rate, measure with a screen ruler, test keys, or read from a teleprompter.
Games
2048, Minesweeper, Sudoku, Gomoku, Tank Battle
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Code formatter FAQ
What is Formatter?
Formatter is a free online code formatter and code beautifier for C/C++, Java, Python, JavaScript, JSON, HTML, CSS, and more. To format and indent code online, search for your language or browse Code Formatters, open its tool page, then paste code or load a file if supported, choose available options, and select Format to beautify code. Review the result before copying or saving it. Formatting adjusts indentation, spacing, and line wrapping; it does not fix syntax errors or run the code. Formatter also provides text tools, image, audio, and video converters, and PDF tools for everyday file tasks.
Which code formatter should I use?
Choose the formatter for your input language or format: C/C++, Java, Python, JavaScript, JSON, HTML, CSS, SQL, TypeScript, and XML each have their own page. Start with that page's default settings, then adjust indentation, style, or wrapping only when those controls are available or your project requires it.
Does formatting fix syntax errors or change what the code does?
No. Formatting adjusts layout such as indentation, spacing, and line wrapping. The input still needs to be valid for the selected language, and you should review the result before using it.
How does a code formatter work?
A code formatter reads language-aware tokens and nested structures, then rewrites indentation, spacing, and line breaks according to a consistent rule set. It does not compile or run the program, so formatting is not a correctness or security check.
How can I find the right tool?
Search by task or file type, then open the tool that matches your input and desired result. Use JSON Formatter to format JSON, or JSON Schema Validator to check it against a schema. Audio Converter changes MP3, WAV, and other audio formats; Audio Splitter and Reverse Audio edit clips, while Video to Audio extracts sound from video. Video Converter or Video Compressor handles video; PDF Compressor changes file size, while Merge PDF, Split PDF, and PDF Page Organizer handle pages. Image Converter, Image Resizer, and Image Compressor handle images. Archive Extractor opens ZIP, 7Z, RAR, and TAR; Speech to Text and Text to Speech handle transcription and voice generation. Each tool page lists its supported formats and options.
Will my files and code be uploaded?
Most tools process files and code in your browser without uploading them. Some code formatters send code to the server and delete it immediately after processing.
Are the tools free, and do I need an account?
The tools are free to use and do not require registration.
Where are my favorite tools saved, and how can I remove them?
Favorites are saved only in this browser, without an account or server sync. Add or remove one with the Favorite button on its tool page, or remove it beside the Favorites list on the home page. Clear favorites removes all favorites; clearing browser data also removes them.
Can I use these tools on a phone or tablet?
Yes. The layout adapts to smaller screens. Some features depend on your browser, and large files may need more memory than your device has available.
Why does a tool download resources the first time I use it?
Some tools need to download processing resources before they can run. Processing starts after the download, and your browser can cache these resources for later use.