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Format JSON, test regex patterns, encode Base64, beautify CSS/HTML/JS, generate favicons, and debug code — all without leaving your browser.
Messy JSON payloads from APIs that are impossible to read without formatting
Regex patterns that need constant trial-and-error testing against sample strings
Generating proper favicons in every size and format modern browsers expect
All free, all browser-based, no uploads required.
Paste the raw JSON response, format it, and spot structural issues.
Build and test regex patterns for form validation or data parsing.
Convert small images or tokens to Base64 for inline embedding.
Beautify CSS, HTML, and JS before committing to version control.
Generate the full favicon package and add it to your project.
“The JSON formatter and regex tester are open in my browser every single workday. They save me from context-switching to heavier tools.”
Priya K.
Full-Stack Developer
No account, no uploads, no limits. 120+ tools that work directly in your browser.
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