Code Beautify

Code formatter, JSON beautifier, XML viewer, hex converters and more

Developer Tools codebeautify.org

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Founded

2013

Starting Price

Free

About Code Beautify

Code Beautify is a free, browser-based suite of developer utilities for formatting, validating, minifying and converting code and data. It covers JSON, XML, HTML, CSS, JavaScript, SQL, YAML, CSV and Excel alongside hundreds of smaller converters, encoders and generators. Everything runs in the browser with no signup required, and the site is funded entirely by advertising rather than a paid plan.

Pros & Cons

Pros

Genuinely free with no usage caps, paywalled features or account requirement
Enormous breadth in one place, covering JSON, XML, SQL, YAML, CSV, Excel, colour, encoding and hashing tools
JSON viewer is one of the more capable free ones, with a tree view, validation error locations and direct export to CSV, XML and TypeScript
Nothing to install, works from any machine including locked-down work laptops
Long-established and widely used, running since 2013 with millions of monthly visits
Optional free account adds save-and-share links for passing formatted output to colleagues

Cons

Ad-supported with heavy ad placement throughout, and there is no paid option to remove ads
Serious privacy incident: in November 2025 watchTowr researchers showed Code Beautify's shareable save links used predictable URLs, letting them scrape roughly 80,000 saved entries across Code Beautify and JSONFormatter that contained credentials, API keys and private keys
Its Recent Links feature remained publicly browsable at the time of that disclosure, unlike JSONFormatter which disabled saving in response
Data is sent to Code Beautify's servers for several tools rather than processed purely on-device, so it is a poor fit for proprietary or secret-bearing payloads
Cluttered interface and inconsistent navigation across hundreds of separate tool pages
The tool catalogue is padded with low-value SEO filler such as random name and address generators, which dilutes the genuinely useful developer utilities
Browser-based, so very large files are slower than a local formatter and the site is subject to downtime

Key Features

JSON viewer and beautifier

Formats, minifies and validates JSON with an expandable tree view, configurable indentation from 1 to 10 spaces, big-number handling, and one-click export to XML or CSV.

Multi-language code formatters

Beautifiers and minifiers for HTML, CSS, JavaScript, SQL, XML, Java, C#, PHP, Lua, ActionScript and MXML, each with its own dedicated editor page.

Validators

Syntax checking for JSON, XML, CSS, JavaScript, YAML and TOML that reports the error location so malformed input can be traced and fixed.

Format converters

Two-way conversion between JSON, XML, YAML, CSV, TSV, SQL, TOML and Excel, plus JSON to TypeScript interfaces, PHP arrays, JSONL and JSX.

Encoding and cryptography tools

Base32, Base58 and Base64 encode/decode, URL and HTML encoding, UTF-8 and hex conversion, JWT decoding, MD5/SHA-256/SHA-512 hashing, HMAC generation and gzip compression.

Image and Base64 utilities

Image to Base64 and back, PNG/JPG/BMP/GIF conversion, SVG viewing and formatting, GIF splitting, pixelation and screenshot beautifying.

Color and unit converters

Conversion between HEX, RGB, HSV, CMYK and named colortones, plus length, weight, volume, area, time, Unix timestamp and CSS unit (REM/PX) converters.

Save and share snippets

A free optional account (email or Google sign-in) lets you save formatted output to a shareable link, bookmark favourite tools and revisit recent items.

Chrome extension

A browser extension puts the most-used formatters and viewers one click away without navigating to the site.

Text and data helpers

Diff and list comparison, sorting, case and text cleaning, word and character counters, regex-free find and replace, Markdown/HTML conversion and table generators.

Pricing

Free

Unlimited use of every formatter, validator and converter
No signup required for the tools themselves
Optional free account for save, share and favourites
Free Chrome extension
Ad-supported, with no ad-free upgrade available
Optional Buy Me a Coffee donation

Best For

Reading an unformatted API response

Paste a minified JSON payload from a log or API call and get an indented, collapsible tree view to find the field you need.

Debugging a syntax error

Run malformed JSON, XML, YAML or CSS through the matching validator to get the line and column of the break instead of a vague parser message.

One-off data format conversion

Turn a JSON export into CSV for a spreadsheet, an Excel sheet into JSON for a fixture, or a SQL result into YAML, without writing a throwaway script.

Quick encoding and hashing checks

Decode a JWT to inspect its claims, Base64 an image for an inline data URI, or generate a SHA-256 hash to verify a value while debugging.

Formatting on a machine you cannot install on

Get a working formatter on a locked-down corporate laptop or a borrowed machine where installing an IDE extension is not an option, using only non-sensitive data.