Version 1.3.0 built on 2026-05-10

Feature

• Add --recreate-index-on-errors and make --no-recreate-index only use existing indexes and never modify them.
• Add --no-mount, --mount toggle option to only trigger index creation without mounting.
• Add direct support for AR archives, which should be faster than
  libarchive for large archives, including .deb and .a files.
• Apply --transform to 7z files.
• Add HTMLMountSource to expose embedded base64-encoded files, such as images, CSS, and JavaScript files,
  as a filesystem. Works particularly well with files created by the Save Page WE browser extension because
  it also stores the original URL and name of embedded files.
• Add --hashes option for computing hashes and storing them as user.hash.<name> xattrs in the index.
• Add --force-folder-index option to create indexes for folders intended for indexing cold storage HDD backups.

Performance

• Apply file type checks associated with a backend before trying to open a file with it.
  This should clean out exceptions from more verbose log levels and may speed up mounting of many files.

AppImages

The AppImages can be downloaded, made executable with chmod u+x *.AppImage, and executed directly to start ratarmount.

There are also usability helpers for AppImages such as AppImageLauncher and AM.

If the AppImage is too slow to start up or to reduce memory overhead for the AppImage itself, the AppImage can also be manually unpacked and installed:

• Extract with ratarmount-*.AppImage --appimage-extract
• The extracted AppImage can be started by executing squashfs-root/AppRun.
• Rename and move the resulting generic squashfs-root folder wherever you want, e.g., /opt/ratarmount-<version>.
• Add a link to /opt/ratarmount-<version>/AppRun into some folder that is in your PATH variable, e.g., with:
  ln -s /opt/ratarmount-<version>/AppRun ~/.local/bin/ratarmount

Slim Version

Supports: 7z, ASAR, bzip2, EXT4, FAT, gzip, RAR, SQLAR, TAR, XZ, ZIP, zlib, ZStandard

Normal / Full Version

Supports:

• All slim formats
• libarchive backend: ar, CAB, cpio, grzip, ISO9660, lrzip, LZ4, lzip, LZMA, lzop, RPM, UU, WARC, XAR, Z
• SquashFS
• All remote protocols: ftp://, git://, http://, ssh://, ...
• Colored output
• Ships with compiled Python bytecode to speed up startup latency by 2-3x at the cost of 20% larger AppImage size.