Developer
JSON Schema Validator
Use a JSON Schema validator to validate JSON payloads against schema rules, required properties, nested objects, and data formats in the browser.
Tools
Browse the full catalog, filter by category, or search by keyword to jump straight into the tool you need.
Showing the 10 newest tools
About the projectDeveloper
Use a JSON Schema validator to validate JSON payloads against schema rules, required properties, nested objects, and data formats in the browser.
Developer
Use a URL encoder/decoder to convert links, query strings, and text between readable and percent-encoded formats.
Developer
Use an HTML entity encoder/decoder to convert text between raw characters and HTML entity strings for templates, markup, CMS content, and debugging.
Developer
Use an HTML viewer to preview HTML code online in a sandboxed browser frame and inspect fragments or full documents quickly.
Developer
Use an HTML link code generator to create anchor tags with titles, classes, aria labels, and target blank links.
Developer
Use an HTML table generator to turn tabular text into semantic table markup with headers and captions.
Developer
Use a regex tester to check patterns, flags, capture groups, and match results against sample text in the browser.
Security
Use a JWT decoder to inspect header and payload claims from JSON Web Tokens without leaving the browser.
Developer
Use a robots.txt generator to create crawl rules, sitemap entries, and simple robots files for websites and SEO workflows.
Media
Use an image optimizer to resize images, compress uploads, and export JPEG, PNG, or WebP files in the browser.