Developer Tools
Format, encode and hash files.
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Format JSON
Pretty-print or minify JSON files with validation.
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Base64 Encode
Encode any file as a Base64 data URI text file.
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File Hash (SHA-256)
Compute SHA-256 checksums for files to verify integrity.
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QR Code Generator
Generate a QR code for any link or text and download it as PNG or SVG.
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Wi-Fi QR Code Generator
Create a QR code that lets guests join your Wi-Fi instantly — download as PNG or SVG.
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ZIP Creator
Pack multiple files into a single .zip archive right in your browser.
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ZIP Extractor
Open a .zip archive, preview images and text inside, and download any file.
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TAR Unpacker
Extract files from .tar and .tar.gz archives without installing anything.
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Password, Hash & Token Generator
Generate strong passwords, SHA-256/SHA-512 hashes, UUIDv4 and random hex/Base64 tokens with the Web Crypto API.
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Storage, DPI & Aspect Ratio Calculator
Convert bytes to KB/MB/GB/TB (1024 or 1000), compute print sizes at 72/150/300 DPI, and solve aspect ratios.
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Magic Bytes & File Signature Inspector
Read a file's leading bytes locally to detect its real type and check that it matches the extension.
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