File tools

• Open and view any file

  Open documents, spreadsheets, slides, PDFs, photos, RAW, video, audio, archives, e-mail, e-books, fonts, 3D models and code in your browser. FilesOpen

• Create a ZIP file

  Put many files or whole folders into one ZIP, TAR or TAR.GZ file, with an optional password. FilesOpen

• Open a ZIP, RAR or 7z file

  See what is inside a ZIP, RAR, 7z or TAR.GZ file and save the files you need. FilesOpen

• Remove a ZIP password

  Remove the password from a ZIP file you know the password of, and get a normal ZIP. FilesOpen

• Split a ZIP into smaller parts

  Cut a big ZIP into numbered parts of the size you choose, as separate ZIPs or .001 pieces, and join them again. FilesOpen

• List the files in a folder

  List every file in a folder, with sizes and dates, as CSV, JSON, Markdown, a folder tree or a SHA-256 checksum file. FilesOpen

• Rename many files

  Rename many files at once with numbering, find and replace or case changes, then download them as a ZIP. FilesOpen

• Check a file's hash (checksum)

  Calculate MD5, SHA-1, SHA-2, SHA-3, BLAKE3 and CRC32 checksums of any file, and check them against a list. FilesOpen

• Find out what a file is

  Find out what kind of file you have from its contents. FilesOpen

• Check a file's MIME type

  Check a file's MIME type and whether its extension matches. FilesOpen

• Find duplicate files

  Find files with exactly the same content in a folder or a set of files, by size and SHA-256. FilesOpen

• Convert file sizes (MB, GB…)

  Convert bytes, KB, MB, GB and TB, decimal and binary, and see how long a download takes. FilesOpen

Quick conversions

One-click versions of the converters with the format already chosen.

• Open a Word document
• Open an Excel spreadsheet
• Open a PowerPoint presentation
• Open an e-mail file (EML or MSG)
• Read an e-book (EPUB, MOBI, AZW3)
• Preview a font file
• View a 3D model (STL, OBJ, GLB)
• Open a DXF drawing
• Play a video or audio file
• Open RAR files
• Open 7z files
• Open TAR.GZ files
• Put a password on a ZIP
• Create a TAR.GZ file
• Join split ZIP parts
• Clean up file names

About these tools

File types are identified from the file's first bytes (its "signature"), not from its name, so renamed or disguised files are recognized.

ZIP files are created and opened with your browser's built-in compression; RAR, 7z and TAR archives are opened with libarchive, which is part of this site. Archives never leave your device.

More tool categories

• Image Tools
• Video Tools
• Audio Tools
• PDF Tools
• Text & Writing Tools
• Developer Tools
• Calculators & Converters
• Business & Productivity Tools