Explore tools

Format and validate JSON locally in your browser.

Validate JSON and locate parse errors without uploading your data.

Minify valid JSON locally for smaller payloads.

Convert valid JSON to readable YAML in your browser.

Convert YAML to formatted JSON locally.

Convert an array of JSON objects to CSV locally.

Convert header-based CSV to a JSON array locally.

Encode Unicode text as Base64 locally.

Decode valid Base64 text locally in your browser.

Encode a URL component, such as a query parameter value.

Decode URL-encoded text locally.

Inspect JWT header and payload locally without verifying its signature.

Generate UUID v4 values locally using Web Crypto.

Count words, characters and lines locally.

Count characters and whitespace locally.

Convert text to uppercase, lowercase, title case or identifier styles.

Keep the first occurrence of each text line locally.

Sort text lines locally.

Trim lines and collapse repeated whitespace locally.

Compare two text blocks locally.

Preview CSV headers and rows locally.

Remove duplicate CSV rows locally.

Compress images as WebP or JPEG, or export lossless PNG.

Resize an image in your browser while preserving its aspect ratio.

Convert PNG to JPG locally with a white background for transparent pixels.

Convert PNG images to WebP locally.

Convert JPG images to WebP locally.

Convert WebP images to PNG locally.

Drag, zoom and crop an image using a preset or custom aspect ratio.

Re-encode an image locally to remove common embedded metadata.

Merge PDF files locally in the order you choose.

Create a PDF from selected pages locally.

Rotate selected PDF pages locally.

Render selected PDF pages to image files in your browser.

Combine PNG or JPG images into a PDF locally.