Free Developer Tools Online
HTML, JSON & SQL Formatters
A growing collection of free, browser-based developer tools โ format, validate and clean up your code in seconds. Nothing is ever uploaded; every tool runs entirely on your device.
Choose a tool
HTML Formatter
Beautify messy or minified HTML with proper indentation. Minify mode included.
Open tool โ ๐งพJSON Formatter
Format, validate and minify JSON with clear error messages and optional key sorting.
Open tool โ ๐๏ธSQL Formatter
Clean up single-line queries with proper clause breaks and keyword casing.
Open tool โ ๐Regex Tester
Test regular expressions against sample text with live match highlighting and capture groups.
Open tool โ ๐จCSS Formatter
Beautify or minify CSS with configurable indent size and brace style.
Open tool โ ๐JS Formatter
Beautify or minify JavaScript โ strings, template literals and comments are preserved exactly.
Open tool โ ๐ฐXML Formatter
Beautify or minify XML โ CDATA sections, comments and self-closing tags handled correctly.
Open tool โ ๐URL Encoder/Decoder
Encode or decode URLs and query strings instantly, with component and full-URL modes.
Open tool โ ๐Base64 Encoder/Decoder
Encode or decode text and files to Base64 instantly, with full Unicode and image support.
Open tool โMore tools coming soon
Word counter and more are on the way.
Coming soonWhy use StudyHelpAI's Coding Hub
Need help understanding the code, not just formatting it?
Ask the AI Homework Solver
Formatters clean up syntax โ but if you need a concept explained, a bug found, or a program written from scratch, head to the Computer Science homework helper and ask in plain English or Tamil.
Request a dry run
For algorithms and data structures, ask the AI solver to "show a dry run with example input" โ watching the logic execute step by step makes it click far faster than reading formatted code alone.
Free Developer Tools for Indian Students
Looking for free developer tools in one place? StudyHelpAI brings together free, browser-based utilities built for Computer Science students and working developers alike โ starting with an HTML formatter, JSON formatter and SQL formatter, with more developer tools online on the way.
These online coding tools run entirely on your device using JavaScript. Nothing is uploaded to a server, so it's safe to paste code or data from real assignments or projects.
As free coding tools, there's no signup, no daily limit, and no watermark on any output โ pick a tool, paste your code, and get a clean result in seconds.
โ Back to Computer Science homework helpFrequently Asked Questions
Yes โ every tool here is completely free, with no signup, no daily limit, and no watermark on the output. Use any tool as many times as you like.
No. Every tool on this page runs entirely in your browser using JavaScript โ your code and data are never sent to a server. That makes them safe to use with real project or assignment code.
Currently available: an HTML formatter, a JSON formatter (format, validate and minify JSON), a SQL formatter, a regex tester (live pattern matching with capture groups), a CSS formatter, a JS formatter, an XML formatter, a URL encoder/decoder, and a Base64 encoder/decoder. A word counter is coming soon.
No. Every tool works directly in your browser on desktop or mobile โ no account, no installation, no app download required.
Yes โ while they're handy for CS students reviewing assignment code, they're built to general web-development standards and work just as well for developers formatting code from logs, APIs, or live projects.