Your Browser-Based Multi-Tool Suite
32 tools · free · runs entirely in your browser
Test and debug regular expressions with real-time matching
Format and validate JSON data
Encode and decode Base64 strings
Convert Unix timestamps to dates and vice-versa across multiple timezones
Format and beautify SQL queries with dialect-specific rules
Calculate BCC (XOR) checksums from ASCII text or hex byte sequences
Calculate Sum8 (Modulo 256) checksums from ASCII text or hex byte sequences
Calculate the MD5 hash of text or files with uppercase/lowercase toggle
Calculate the SHA-1 hash of text or files using the native Web Crypto API
Calculate the SHA-256 hash of any text or file using the native Web Crypto API
Calculate the SHA-512 hash of any text or file using the native Web Crypto API
Calculate the SHA-384 hash of any text or file using the native Web Crypto API
Calculate CRC checksums for 100+ algorithms (CRC-8 through CRC-64, Adler-32, Fletcher-16) with a parameterized BigInt engine
Encode and decode URLs using Full URL (encodeURI) or URL Component (encodeURIComponent) modes
Inspect and edit binary files in your browser with hex view, decoded text, and a data interpreter panel
Convert text to a hex byte sequence with configurable charset, casing, 0x prefix, and delimiter
Create, decode, and verify JSON Web Tokens signed with HMAC algorithms
Generate QR codes with custom styles and decode QR/barcodes from files or live camera
Generate and decode barcodes — Code 128, Code 39, EAN-13, UPC, ITF — in any browser
Merge multiple PDF files into one with drag-and-drop reordering — fully in-browser, no uploads
Extract specific pages from a PDF — odd, even, or a custom selection — fully in-browser, no uploads
Add an image or text watermark to any PDF page — drag, resize and adjust opacity, then download. Fully in-browser, no uploads
Split a PDF into multiple parts by adding cut points — download separately or as a ZIP. Fully in-browser, no uploads
Convert PDF pages into images (PNG, JPG, BMP) — choose all, even, odd, or custom pages and download as ZIP. Fully in-browser, no uploads
Drag thumbnails to reorder PDF pages and export the result — fully in-browser, no uploads
Rotate individual pages in a PDF — click any thumbnail to cycle through 90°/180°/270°, then export. Fully in-browser, no uploads.
Convert PDF files to Markdown text — extract text, detect headings by font size, and download the result as a .md file. Fully in-browser, no uploads.
Extract all embedded images from a PDF and download as ZIP — supports PNG, JPG, JPEG, BMP. Fully in-browser, no uploads.
Add an image or text watermark to any PNG, JPG or WebP — drag, resize and adjust opacity, then download. Fully in-browser, no uploads, 100% private.
Merge multiple images (PNG, JPEG, GIF, BMP, WebP) into a single PDF with drag-to-reorder — fully in-browser, no uploads
All tools run entirely in your browser. No data is sent to any server.
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