A free Code Beautify alternative that runs in your browser

Try it now: JS Beautifier

Format, beautify, and clean minified or messy JavaScript code with options to adjust tab indentation size and copy output.

This is the real tool, not a demo. Open JS Beautifier on its own page.

AltFTool vs Code Beautify

Code Beautify is a close analogue: free, ad-funded, no login wall, and by their own policy 99% of tools process in the browser. The limits that bite are mechanical rather than commercial — 1 MB of input, with a recommendation to stay under 100 KB, and a five-second beautify timeout. Their file-upload and load-from-URL paths do send data to a server, which is worth knowing, though they state nothing is stored. Ours process in the tab throughout, and a large file is bounded by memory rather than by a fixed cap.

Code Beautify's free tier, in their own words

• No paid tier and no subscription — https://codebeautify.org/pricing returns HTTP 404, the FAQ mentions no paid features, and monetisation is ads plus an optional 'Buy us a Coffee' donation link
• Hard input size cap stated in their own FAQ: '1 MB. For better performance data size should be upto 100KB.'
• Processing timeouts stated in their FAQ: 'Beautify time: 5 seconds, minify time: 5 seconds'
• Links saved with the 'Save Online' button while logged out are publicly accessible; private, link-only saves require an account
• Their privacy policy confirms the file path leaves your machine: 'In case of URL loading and File upload, data traverse between server and client, but we do not not store any data.'
• Privacy policy advises against putting real data through the save feature: 'Do not save password, keys, real production data and confidential information.'
• Third-party data flows disclosed: Google Analytics (Google 'may use the data it collects to contextualize and personalize the ads of its own advertising network') and CloudFlare technical data collection

Checked on 2026-07-25 against the following sources, each opening in a new tab: codebeautify.org/, codebeautify.org/policy, codebeautify.org/faq, codebeautify.org/aboutus, codebeautify.org/pricing. Vendors change their plans — if something here is out of date, trust Code Beautify's own page over ours.

What Code Beautify does better

Plenty of people should keep paying for Code Beautify, and these are the reasons why.

• For typed or pasted input their privacy policy is unusually direct and favourable: '99% of our tools are doing processing on browser using Java Script.' Only the explicit file-upload and load-from-URL paths touch their server, and they state they do not store that data.
• The breadth in one consistent interface is genuinely hard to beat — JSON, XML, CSS, SQL, JavaScript and HTML formatters, plus base64, hex, hashing and crypto, colour conversion, string utilities, image converters and random generators, all with the same editor conventions.
• It fits into a real workflow rather than being a one-off paste box: Save Online links, Recent/Archived/Favourites, optional accounts for private saves, and an official Chrome extension.
• No login wall on the tools themselves — accounts are strictly optional, and every tool is reachable and usable on first visit.

And what AltFTool does not do

• No Save Online, no Recent/Archived/Favourites history, and no Chrome extension.
• Code Beautify's catalogue in one consistent editor is broader than our developer section, particularly on crypto and string utilities.
• No account layer at all, so nothing you do here can be revisited later on another machine.

Visit Code Beautify (opens in a new tab)

Where each Code Beautify job goes here

Left: what you clicked on Code Beautify. Right: the tool that does the same job here.

• JS BeautifierJS Beautifier
• CSS BeautifierCSS Beautifier
• SQL FormatterSQL Formatter
• JSON Viewer / FormatterJSON Formatting
• XML ViewerXML Editor
• YAML FormatterYAML Formatter
• Diff CheckerDiff Checker

The tools that cover Code Beautify work

• JS BeautifierFormat, beautify, and clean minified or messy JavaScript code with options to adjust tab indentation size and copy output.Open
• CSS BeautifierFormat, beautify, and clean minified or messy CSS code with options to adjust tab indentation size and copy output.Open
• SQL FormatterFormat and clean SQL queries for better readability.Open
• JSON FormattingRegular formatted display of JSON, plus automatic formatting/conversion for API interface testing (GET, POST, POST-JSON).Open
• XML EditorFormat, minify, and inspect XML documents.Open
• YAML FormatterFormat simple YAML, list keys, and convert YAML snippets to JSON.Open
• Diff CheckerCompare two files and highlight the differencesOpen
• MD5 Hash GeneratorGenerate secure, cryptographic MD5 hash values (checksums) from any input text instantly, with real-time outputs.Open

Questions people actually ask

Does AltFTool cap input at 1 MB?

No fixed cap. Code Beautify states 1 MB with 100 KB recommended and a five-second timeout; here the limit is what your browser can hold and how long you are willing to wait.

Is Code Beautify sending my code to a server?

For pasted input, their policy says no — 99% of tools process in the browser. The exceptions are the file-upload and load-from-URL paths, which do transit their server, though they state nothing is stored.

Can I save a snippet for later?

Not here. Code Beautify's Save Online, Recent and Favourites are real features with no AltFTool equivalent — though their own policy warns against saving production data or keys.