transform.tools
Focus: converter and typescript. Shares json and developer tools with JSONLint. Same 4.6 rating.
Web AppFreeWeb
4.6Visit
Web App
JSONLint
Validate, format and fix JSON online in seconds.
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is JSONLint?
JSONLint checks whether your JSON is valid, points to the line with the error and reformats it into readable, indented code. It is free in the browser and also offers tools to minify, compare and convert JSON to and from CSV and YAML.
Pros
- Clear error messages
- Format and minify in one place
- Extra JSON converters
Cons
- Ads on the site
- Avoid pasting sensitive data
Who should use JSONLint
Developers who need to check or tidy JSON quickly.
Who may not need it
People who never work with data files or APIs.
JSONLint alternatives
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Focus: data conversion, encoding and open source. Shares developer tools with JSONLint. Adds Offline. Rated 4.8 (JSONLint: 4.6).
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Free alternatives to JSONLint
Free resources that cover similar ground.
Epoch Converter
Focus: timestamps, unix time and dates. Shares developer tools with JSONLint. Same 4.6 rating.
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Focus: readme, markdown and documentation. Shares developer tools with JSONLint. Same 4.6 rating.
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Focus: json viewer, data visualisation and open source. Shares developer tools with JSONLint. Rated 4.5 (JSONLint: 4.6).
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Ghostty
Focus: terminal, emulator and gpu. Shares developer tools with JSONLint. A desktop app, not a web app. Adds macOS and Linux. Rated 4.9 (JSONLint: 4.6).
Desktop AppFreemacOS, Linux
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Click
Focus: python, cli and command line. Shares developer tools with JSONLint. A framework, not a web app. Adds macOS, Windows and Linux. Rated 4.8 (JSONLint: 4.6).
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