File Tools
Inspect, hash, encode and archive files locally — type detection, checksums, Base64 and ZIP tools.
File Type Checker
Check the real type of a file online by reading its magic bytes and comparing them with its extension. Runs locally i...
→MIME Type Checker
Detect the MIME type of a file from its contents online and see the matching extension and signature, without uploadi...
→File Size Calculator
Add up the sizes of several files at once and see the total in bytes, KB, MB and GB, with the largest files listed fi...
→File Hash Generator — MD5, SHA-1, SHA-256, SHA-512
Generate MD5, SHA-1, SHA-256, SHA-384 or SHA-512 checksums for a file online, computed locally in your browser with n...
→SHA-256 File Hash
Calculate the SHA-256 hash of a file online using browser SubtleCrypto, the current standard for verifying downloads.
→File to Base64
Convert any file to a Base64 string or data URI online and copy the result straight into your source, CSS or JSON.
→Base64 to File
Decode a Base64 string or data URI back into the original file online, with the MIME type detected and a download but...
→ZIP Extractor — Unzip Files Online
Extract files from a ZIP archive online in your browser, preview the contents and download the entries you want. No u...
→Create ZIP — Combine Files into an Archive Online
Create a ZIP archive from any files online, in your browser, with folder names preserved and no upload to a server.
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