All Tool Categories
Nine categories, 160+ free developer tools — all running in your browser, all instant, no signup required.
MegaText organizes its tools by what they do rather than what they operate on. A JSON formatter and a CSS formatter live together because they share the same workflow shape: paste, format, copy. A regex tester lives with the text utilities because it operates on the same kind of string input. The categories below are starting points — pick the one that matches your immediate task and the relevant tool is usually one click away.
Every tool runs entirely in your browser using JavaScript and the standard Web APIs. Your input never reaches a server, which means you can paste sensitive code, internal API responses, or proprietary data without exposing it to a third party. There are no usage limits, no rate limits, no quota tracking. Bookmark whichever tools you reach for repeatedly and they'll always be a single click away.
Format and beautify JSON, XML, HTML, CSS, SQL, and more
Minify code to reduce file size
Base64, URL, HTML entities, JWT, and more
Convert between JSON, YAML, XML, CSV, TOML, and more
Generate UUIDs, passwords, Lorem Ipsum, QR codes, and more
MD5, SHA, HMAC, bcrypt hashing and comparison
Word counter, diff, regex tester, case converter, and more
HTTP codes, timestamps, chmod, ASCII table, and more
Validate JSON, XML, YAML, HTML, email, URL, and more
What each category is for
Formatters & Beautifiers
Formatters take dense, minified, or inconsistently-indented code and produce a cleanly-readable version. Use them when you receive a single-line API response, a CSS bundle from a CDN, or a third-party script you need to audit. Formatting is non-destructive — it changes only whitespace, never tokens — so you can format aggressively without worrying about breaking logic.
Browse formatters & beautifiers →Minifiers
Minifiers strip every byte that isn't strictly needed for the parser, producing payloads that are 30-60% smaller than the source. The result downloads faster, parses faster, and runs identically. Combine with gzip or Brotli compression for compounded savings on the wire.
Browse minifiers →Encoders & Decoders
Encoders translate data between representations — text to Base64, characters to URL-safe percent escapes, binary to hex. Decoders reverse the process. Both are everyday operations in API integrations, debugging sessions, and security workflows where the same logical data needs to live in different transport contexts.
Browse encoders & decoders →Format Converters
Converters translate structured data between formats — JSON to YAML, CSV to JSON, XML to TOML, and dozens of other pairs. Use them at system boundaries: when an API returns JSON but your config system expects YAML, or when a database export is CSV but your downstream pipeline needs structured records.
Browse format converters →Generators
Generators produce values on demand: UUIDs, random strings, secure passwords, Lorem Ipsum placeholder text, QR codes, and similar artifacts. Browser-based generators have a security advantage — secure values produced client-side never traverse a network, eliminating an entire class of interception risk.
Browse generators →Hash & Crypto
Hash tools compute cryptographic digests for input data — MD5, SHA-256, SHA-3, HMAC variants. Use them for file integrity verification, content-addressable storage keys, or as building blocks in larger security protocols. (Note: hashing is not encryption; hashes are one-way and cannot be reversed.)
Browse hash & crypto →Text Tools
Text tools handle the ergonomics of working with strings: counting words and characters, comparing two versions, testing regular expressions, transforming case, finding and replacing patterns. They're the kind of utility every writer, developer, and editor reaches for repeatedly — and that browsers handle perfectly without any setup.
Browse text tools →Web Developer Tools
Web reference tools provide instant lookups for the data developers need most often: HTTP status codes, MIME types, ASCII characters, Unix timestamps, chmod permission codes, CSS units. Bookmark them for the same reason you bookmark a man page — quick reference beats tab-switching every time.
Browse web developer tools →Validators
Validators check whether structured data is well-formed before downstream systems try to process it. A JSON validator catches the missing comma that would otherwise produce a cryptic API error; an HTML validator finds the unclosed tag that breaks rendering on one specific browser. Validate at boundaries; debug less.
Browse validators →Frequently asked questions
Why are these tools free?
MegaText is supported by display advertising. Pages have ad slots placed where they don't interfere with the tool workflow itself. Browser ad-blockers are tolerated and not detected — if you find ads intrusive, install one. The model works because most users use the tools occasionally rather than constantly, and the ad revenue covers our hosting and development without needing to charge anyone.
Can I use these tools offline?
Once a tool page has loaded once, it generally works offline — the JavaScript runs locally and doesn't need network access for the conversion itself. Your browser may serve cached pages on subsequent visits even without connectivity. Hard-refreshing requires connectivity to fetch the latest version.
Is anything I paste sent to a server?
No. Every tool runs entirely in your browser. You can verify this by opening your browser's Network tab while using a tool — no requests should appear when you paste input or receive output. The page itself loads from our servers (HTML, CSS, JavaScript), but your data stays on your device.
Are there file size or input length limits?
Browser-based processing scales reasonably to a few megabytes of input. Beyond that, the browser tab may slow down or run out of memory depending on your device. For very large inputs (hundreds of megabytes or larger), use a desktop or command-line tool.
How do you decide which categories and tools to add?
We add tools that solve real, recurring developer problems — the kind you reach for multiple times a week — and we prioritize tools where browser-based execution offers a meaningful advantage over installed alternatives (privacy, instant access, no installation friction). New tool requests are welcome via the contact page.