An opinionated code formatter that enforces a consistent code style.
Best Beautifier.io Alternatives ranked by AI · updated Aug 2026
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Beautifier.io is an online source-code formatter for languages and formats including JavaScript, HTML, CSS, JSON, and XML. It targets developers who want adjustable indentation and style controls for quick browser-based cleanup.
Top 6 Beautifier.io alternatives
JSONLint is a web-based tool to validate, format, and minify JSON data.
CodeBeautify is a web-based toolkit for formatting, validating, converting, and comparing code and structured data. It serves developers who need quick browser-based...
Pros
- Combines formatters, validators, converters, encoders, and viewers in one site
- Supports a broader range of data formats than most single-purpose beautifiers
- Runs in a browser without installation or account requirements for common tools
Cons
- Broader interface can feel less focused than dedicated formatters
- Online processing is less suitable for sensitive source code than local tools
- Ad-supported pages can be visually busy
DevToys is a free, open-source Windows utility collection that includes JSON formatting and validation tools. It targets developers who want multiple offline...
Pros
- Provides offline JSON tools alongside encoders, converters, and generators
- Avoids sending sensitive JSON to a web service
- Free and open source for Windows users
Cons
- Windows-focused, unlike browser-based Pretty JSON
- Less specialized for JSON inspection than dedicated web tools
- Not available as a native equivalent across all desktop platforms
Free, open source
5
CyberChef
GCHQ
CyberChef is a browser-based data transformation tool for developers, analysts, and security professionals. Its visual recipe system handles encoding, decoding, parsing, compression,...
Pros
- Much broader transformation library than Boop
- Runs in a browser on nearly any operating system
- Supports chained operations through reusable recipes
Cons
- Less convenient than Boop for a native macOS scratchpad workflow
- Large interface can feel overwhelming for simple edits
- Not designed as a general-purpose text editor
6
Online XML Tools
Browserling
Online XML Tools is a web suite for formatting, validating, converting, querying, and transforming XML documents. It is aimed at developers and...
Pros
- Provides deeper XML-specific operations than CodeBeautify's general-purpose tools
- Includes validation, XPath-related utilities, minification, and transformation features
- Handles XML-focused workflows in a straightforward web interface
Cons
- Much narrower than CodeBeautify for JSON, SQL, YAML, and unrelated formats
- Online processing is not ideal for confidential XML documents
- Less suitable for general-purpose code formatting
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