File & Archive Tools
Zip, unzip, hash, inspect and rename files
Create and extract ZIP, TAR and GZIP archives, list archive contents before extracting, generate SHA-256 and CRC32 checksums, detect real file types from magic bytes, view files as hex, and build bulk rename plans. Archive handling guards against zip-slip and decompression bombs.
31 tools in this category
Base64 to File
Decode Base64 or a data URI back into a downloadable file, with the type detected.
Binary File Comparison
Compare two files byte by byte and find the first difference.
Binary File Viewer
Look inside any binary file byte by byte.
Bulk File Renamer
Build a rename plan for many files - prefix, suffix, replace, sequential numbering or case.
CHMOD Permission Calculator
Convert between octal and symbolic Unix permissions, both directions.
Create a GZIP File
Compress a single file with GZIP, the format used for web responses and tarballs.
Create a TAR Archive
Bundle files into a TAR, optionally compressed as .tar.gz.
Create a ZIP File
Bundle several files into one ZIP archive, entirely in your browser.
Duplicate File Finder
Find files with identical contents among a set, whatever they are called.
Extract a GZIP File
Decompress a .gz file, with decompression bomb protection.
Extract a TAR Archive
Open a .tar or .tar.gz archive and download the files inside.
Extract a ZIP File
Open a ZIP archive and download the files inside, with path traversal refused.
File Checksum Validator
Check a downloaded file against the checksum the publisher provided.
File Entropy Viewer
Measure how random a file is, overall and across its length.
File Extension Detector
Find the correct extension for a file with the wrong name or no name at all.
File Hash Generator
Calculate SHA-256, SHA-1, MD5 and CRC32 checksums for a file.
File List Generator
Produce an inventory of files with sizes, types and dates, exportable as CSV.
File Metadata Viewer
See a file size, type, modification date and entropy at a glance.
File MIME Type Detector
Work out the correct Content-Type for a file by inspecting its contents.
File Signature Detector
Identify what a file really is from its magic bytes, regardless of its extension.
File to Base64
Encode any file as Base64 or a data URI.
File to Hex
Convert a file into a hexadecimal string.
Filename Sanitizer
Clean a list of file names so they are safe on every operating system.
Hex File Viewer
Inspect any file as a hex dump with an ASCII column, from any offset.
Hex to File
Turn a hexadecimal string back into a binary file.
Join Split File Parts
Rejoin numbered file parts back into the original file.
Split a Large File
Cut a file into numbered parts of a fixed size.
TAR File Viewer
List the contents of a .tar or .tar.gz without extracting it.
Test ZIP Integrity
Verify that every entry in a ZIP decompresses cleanly and matches its stored checksum.
ZIP Contents List
Get a plain list of the file paths inside a ZIP archive.
ZIP File Viewer
List what is inside a ZIP without extracting it, with sizes and compression ratios.