File Tools
Convert, edit, optimize, inspect, and protect files with fast browser-based tools.
18 Tools
File ChecksumCalculate a SHA-256 checksum without uploading the file.File Size ConverterConvert between bytes, KB, MB, GB, and TB.MIME Type CheckerInspect a file name, MIME type, and basic size information.File Name CleanerCreate a safer clean file name from messy text.Batch File RenamerDownload files in a ZIP with consistent sequential names.Data URL GeneratorConvert a local file into a data URL.File to Base64Encode a local file as Base64 text.Base64 to FileDecode Base64 text into a downloadable file.Zip FilesZip Files runs entirely in your browser. Files are never uploaded to our server.Unzip FilesUnzip Files runs entirely in your browser. Files are never uploaded to our server.Archive File ListArchive File List runs entirely in your browser. Files are never uploaded to our server.Duplicate File FinderDuplicate File Finder runs entirely in your browser. Files are never uploaded to our server.File ChunkerFile Chunker runs entirely in your browser. Files are never uploaded to our server.File Signature CheckerFile Signature Checker runs entirely in your browser. Files are never uploaded to our server.Binary File InspectorBinary File Inspector runs entirely in your browser. Files are never uploaded to our server.Hex File ViewerHex File Viewer runs entirely in your browser. Files are never uploaded to our server.Batch File PrefixerBatch File Prefixer runs entirely in your browser. Files are never uploaded to our server.Batch File SuffixerBatch File Suffixer runs entirely in your browser. Files are never uploaded to our server.
How it works
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Frequently asked questions
Are file tools free?
The currently published tools are free to use in the browser.
Are files uploaded to a conversion server?
Supported processing runs locally on your device. Each tool page explains its workflow before you start.
Do I need to install software?
No. Use a current browser and keep the original file until you verify the result.