Apps

Encode and decode Base64 text quickly with instant results.

Convert text to hex and hex back to text in seconds.

Convert text to binary and binary back to text with byte grouping.

Encode or decode URLs and query strings safely.

Convert text to Unicode escape sequences and back.

Apply ROT13 or Caesar shifts to text instantly.

Encode or decode HTML entities for safe markup.

Convert text to Base32, Base58, or Base91 and back.

Encode or decode Morse code with custom spacing.

Convert Markdown to HTML or HTML back to Markdown.

Edit Markdown with live preview, open and save .md files, and export the rendered HTML view as a PDF.

Convert CSV to JSON or JSON to CSV with schema mapping.

Convert YAML to JSON or JSON to YAML with comment handling.

Convert XML to JSON or JSON to XML with configurable conventions.

Generate MD5, SHA-1, SHA-256, or SHA-512 hashes from text.

Generate keyed HMAC hashes for common algorithms.

Generate and parse UUIDs or ULIDs with metadata.

Generate SEO-friendly slugs with locale options.

Convert text to camel, snake, kebab, or title case.

Convert NDJSON (JSON Lines) to arrays and back.

Compare two JSON inputs with a visual tree diff for added, removed, and modified data.

Escape or unescape regex patterns for JS/PCRE.

Escape SQL strings for MySQL or PostgreSQL.

Encode/decode Base64URL for JWT-friendly payloads.

Generate a random strong password with copy to clipboard. Uses the browser's cryptographically strong random generator.

Generate ASCII art text with fixed-width fonts.

Decode JWT header/payload, view expiry, and copy pretty JSON.

Format JSON, minify it, validate it, and copy with one click.

Convert epoch ⇄ date/time with timezone support.

Merge multiple PDFs into one locally in your browser.

Split a PDF into one file per page or by page ranges.

Pick specific pages from a PDF and export a new file.

Drag pages to reorder and rotate selected pages 90/180/270 degrees.

Edit PDF title, author, subject, and keywords.

Add a text watermark to all pages with opacity and position options.

Add a logo or image stamp to selected pages.

Fill PDF form fields and optionally flatten them.

Attach files to a PDF for easy bundling.

Resize pages to A4 or Letter while centering content.

Merge PDFs and optionally insert a cover page.

Add page numbers with custom format and position.

View PDFs

Convert PDF pages into images and download them as a ZIP.

Convert multiple images into a single PDF locally in your browser.

Convert PNG images to JPG in your browser. Choose quality and background color for transparent areas.

Convert JPG/JPEG images to PNG in your browser. No upload—everything runs locally.

Convert PNG or JPG images to WebP in your browser. Choose quality and download or ZIP.

Convert WebP images to PNG or JPG in your browser. First frame only for animated WebP.

Compress images with quality control and optional max width. Output as JPG, PNG, or WebP.

Resize images with exact dimensions or fit modes. Output as PNG or JPG.

Encode an image to Base64 and Data URL. Copy or download as text.

Generate favicon.ico, PNG sizes, apple-touch-icon, and site.webmanifest from one image.