Popular tools

Format, beautify, and minify JSON in your browser. Free, private, and instant - no upload to a server.

Validate JSON instantly in your browser. See type, size, and node counts - or exact parse errors with line and column.

Explore JSON as an interactive tree with paths, types, and expandable nodes - all processed locally in your browser.

Encode UTF-8 text to Base64 or decode Base64 back to text - instantly in your browser.

Percent-encode text for URLs or decode encoded query strings - private and instant.

Decode JWT header and payload in your browser - inspect claims without uploading tokens.

Generate UUID v4 identifiers in bulk - uppercase and hyphenless options, fully client-side.

Test JavaScript regular expressions against sample text - matches and groups, private in your browser.

Convert Unix timestamps to dates and back - seconds, milliseconds, and ISO strings in your browser.

Preview Markdown as HTML in your browser - private drafts, no upload.

Preview HTML email with estimated client compatibility - private sandbox, no upload.

Escape and unescape HTML entities in your browser - private encode/decode, no upload.

Generate SHA-1 / SHA-256 / SHA-384 / SHA-512 digests of text with Web Crypto - fully client-side.

Compress JPG, PNG, and WebP images in your browser with a quality slider - private, no upload.

Convert images between PNG, JPG, and WebP in your browser - private, no upload.

Generate title, description, canonical, Open Graph, and Twitter meta tags as paste-ready HTML.

Infer a draft-07 JSON Schema from sample JSON - local-first, private, optional rate-limited API.

Explain JavaScript regex patterns - tokens, groups, and flags - privately in your browser.

Generate a PNG QR code from text or a URL - private, browser-only.

Combine multiple PDF files into one document entirely in your browser.

Extract a page range from a PDF into a new file in your browser.

Rotate PDF pages by 90°, 180°, or 270° entirely in your browser.

Rewrite a PDF locally to shrink structural overhead. Results vary for image-heavy scans.

Turn one or more JPG/PNG images into a PDF in your browser.

Render PDF pages to JPG images locally in your browser.

Render PDF pages to JPG or PNG images locally in your browser.

Extract existing text from PDFs locally. Scanned PDFs need OCR PDF instead.

Export PDF text to CSV for Excel. Heuristic tables - open the CSV in Excel or Sheets.

Export bank statement PDF text to CSV for Excel. Heuristic - always review amounts.

Convert HTML to a simple text-layout PDF locally. Not a pixel-perfect print engine.

Convert DOCX to PDF locally via HTML extraction. Complex layouts may lose fidelity.

Extract PDF text into a simple DOCX. Layout is not preserved perfectly.

Generate Code128, EAN, UPC, Code39, and QR barcodes as PNG in your browser.

Convert JSON to XML privately in your browser.

Convert JSON to CSV privately in your browser.

Convert JSON to YAML privately in your browser.

Convert XML to JSON privately in your browser.

Convert YAML to JSON privately in your browser.

Convert CSV to JSON privately in your browser.