Developer tools
Small tools for everyday coding.
Encode and decode data, and handle the small tasks that come up while you build. Each tool does one job well and runs right in your browser, with no signup and nothing uploaded.
All developer tools
Base64 Encode and Decode
Convert text to Base64 and decode it back
Image to Base64 Converter
Turn an image into a Base64 data URI
Base64 to Image Converter
Turn a Base64 string back into an image
Strip HTML Tags
Remove HTML tags and keep the plain text
JSON Formatter and Validator
Format, validate, and minify JSON in your browser
YAML Formatter and Validator
Format, validate, and convert YAML in your browser
SQL Formatter
Format and beautify SQL queries in your browser
XML Formatter and Validator
Format, validate, and minify XML in your browser
TOML Formatter and Beautifier
Format and check TOML config files in your browser
HTML Formatter and Beautifier
Beautify and minify HTML in your browser
CSS Formatter and Beautifier
Beautify and minify CSS in your browser
SCSS Formatter and Beautifier
Beautify SCSS (Sass) in your browser
LESS Formatter and Beautifier
Beautify LESS in your browser
JavaScript Formatter
Format, beautify, and minify JavaScript in your browser
TypeScript Formatter
Format and beautify TypeScript in your browser
Python Formatter
Format and beautify Python code in your browser
Java Formatter
Format and beautify Java code in your browser
C Formatter and Beautifier
Beautify C code with clang-format in your browser
C++ Formatter and Beautifier
Beautify C++ code with clang-format in your browser
C# Formatter and Beautifier
Beautify C# code with clang-format in your browser
Go Formatter (gofmt)
Format Go code with gofmt in your browser
Rust Formatter (rustfmt)
Format Rust code with rustfmt in your browser
PHP Formatter and Beautifier
Format and beautify PHP code in your browser
GraphQL Formatter and Beautifier
Format and beautify GraphQL schemas and queries in your browser
Shell Script Formatter (shfmt)
Format Bash and sh scripts with shfmt in your browser
Lua Formatter (StyLua)
Format Lua and Roblox Luau code with StyLua in your browser
JSON to CSV Converter
Convert JSON to CSV and CSV back to JSON in your browser
JSON to YAML Converter
Convert JSON to YAML and YAML back to JSON in your browser
ANSI Color Text Generator
Make colored ANSI text for Discord and terminals
UTF-8 Encoder and Decoder
Convert text to UTF-8 bytes and decode them back
URL Encoder and Decoder
Encode text for a URL and decode it back
HTML Entity Encoder and Decoder
Escape text as HTML entities and decode them back
Epoch Time Converter
Convert Unix timestamps to dates and back to numbers
Cron Expression Generator
Build cron schedules, read them in plain English, and see run times
HEX to RGB Converter
Convert HEX color codes to RGB and RGB back to HEX
JWT Decoder
Decode a JSON Web Token and check its signature
Regex Tester
Test JavaScript, Python, PHP, Go, and Rust regex as you type
RGB to HEX Converter
Convert RGB, RGBA, and 0 to 1 color values to HEX codes
CSS Gradient Generator
Make linear, radial, and conic gradients and copy the CSS
BlurHash Generator
Turn an image into a BlurHash placeholder string
ThumbHash Generator
Turn an image into a compact ThumbHash placeholder
LQIP Generator
Make a tiny base64 image placeholder data URI
JavaScript Keycode Finder
Press a key to see its keyCode, event.key, and event.code
The small jobs, sorted
Building software means a steady stream of small side tasks. Encoding a value to Base64, decoding a token to see what is inside, or checking the shape of some data. These tools handle each of those on their own, so you can grab the one you need and get back to the actual work. There is nothing to install and no account to create.
Private by design
Every tool here runs locally in your browser. When you type or paste, the work happens on your own device and nothing is sent to a server. That keeps the tools fast, since there is no round trip to wait on, and it means your data stays with you. Once a page has loaded, most keep working even if you go offline.
Frequently asked questions
- What are developer tools?
- They are small utilities that help with everyday coding tasks, like encoding and decoding data or reading a token. Each one is focused on a single job so it stays quick to use, with nothing to set up.
- Are these tools free?
- Yes. Every tool here is completely free with no signup, no limits, and no watermarks. Use them as often as you like.
- Does my data stay private?
- Yes. These tools run entirely in your browser, so your input and results are never uploaded to a server. Once a page has loaded you can even use it offline.
- Do I need to install anything?
- No. The tools work in any modern web browser on desktop or mobile. There is nothing to download and no extension to add.