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PasteKit

PasteKit

Format JSON, YAML & SQL privately

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Launched October 18, 2026
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About PasteKit

PasteKit is a privacy-focused, in-browser formatting and validation tool designed for developers and data professionals. It supports over 50 formats including JSON, YAML, XML, SQL, and CSV, providing instant formatting, validation, and conversion capabilities. Unique to PasteKit is its strict Content Security Policy (CSP), ensuring that all data remains on the user's machine without leaving their browser, making it an ideal choice for sensitive or confidential data. Whether you need to beautify code, validate schemas, or convert between formats, PasteKit offers a comprehensive suite of tools within a simple, accessible interface, all without requiring any server-side processing. Its extensive feature set, including JSON diff, schema validation, repair tools, and jq integration, makes it a versatile utility for developers, data analysts, and privacy-conscious users alike.

Screenshots

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Pros

  • ✓Runs entirely in the browser, ensuring data privacy and security
  • ✓Supports over 50 formats and multiple converters for versatile use
  • ✓Includes advanced tools like JSON diff, schema validation, and repair
  • ✓Easy to use with instant formatting and validation feedback
  • ✓No installation required, accessible from any device with a browser

Cons

  • ✗Lacks detailed documentation or tutorials for advanced features
  • ✗No pricing information available, possibly indicating limited or paid features
  • ✗User interface may be basic for some advanced workflows

Use Cases

1Quickly formatting and validating JSON, YAML, or XML files during development
2Converting data between formats for data integration or migration
3Validating SQL queries or CSV data for accuracy
4Performing JSON diff or schema validation to troubleshoot data issues
5Ensuring data privacy when working with sensitive data in-browser
6Repairing malformed JSON or YAML files without external tools

Pricing

Pricing not verified

Quick Info

Category💻 Developer Tools
Upvotes0
Comments1
Launched10/18/2026

Topics

ProductivityPrivacyDeveloper Tools

Makers

Koh Yee Huei

Koh Yee Huei

Alternatives

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