File Tools
Inspect, validate and analyze local files privately, without uploading them.
10 tools
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File SHA-256 Checksum
Calculate a SHA-256 checksum for a local file without sending its bytes anywhere.
Open tool →File Size Calculator
View the sizes of multiple local files and calculate their combined total.
Open tool →JSON File Validator
Validate a local JSON file and download a nicely formatted copy without uploading it.
Open tool →CSV File Viewer
Preview rows and columns of a local CSV file, including quoted commas and multiline fields.
Open tool →File Hex Viewer
Inspect the first bytes of a local file as hexadecimal and printable ASCII without uploading it.
Open tool →File Type Inspector
Identify common file formats using their magic-byte signatures, independently of the filename.
Open tool →UTF-8 File Validator
Check UTF-8 validity and inspect BOM, character count, and newline styles in a local text file.
Open tool →File to Base64
Convert a local file into downloadable Base64 text, entirely in the browser.
Open tool →Text File Merger
Combine two to twenty UTF-8 text files in selection order and download one merged document.
Open tool →Line Ending Converter
Convert a UTF-8 text file between Unix LF, Windows CRLF and legacy CR line endings.
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