EterPack Archiver - PackMakerLite-RS (New 2026)

martysama0134 · February 19

This is a reworked version of the PackMakerLite fully rewritten in Rust.

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In the download folder you'll both find the portable zip and the setup. The context menu extension association will be done automatically in the setup.

It includes both the console version (-cli) and the gui version (-gui). The bats can be used to register custom extensions.

packmakerlite-cli:

Spoiler

packmakerlite-gui:

Spoiler

Right now it supports all the features PackMakerLite v3 supports (multithreading, PackMakerLite.json, etc), except pack type 3-4-5-6. I started this project just yesterday.

Changelog

v0.1.0
- recreated -cli version
- created -gui version
- implemented type 0-1-2

v0.2.0
- implemented type 6 xtea(snappy)

v0.3.0
- implemented output_directory_path & hybrid_candidate_discovery options
- extended --list with filename_crc and data_crc
- improved icon resolution

v0.4.0
- Added global Recent Workspaces support for the GUI

v0.5.0
- Added CLI archive search: `--search <WORKSPACE_DIR> <FILENAME_OR_PATTERN>`.
- Added GUI `Search`.

v0.6.0
- Added installer PATH integration prompt to optionally add `packmakerlite-cli` to PATH.
- Added portable/user utility scripts:
- `Register-Path-Env.bat`
- `Unregister-Path-Env.bat`

v0.7.0
- Added GUI `Check Duplicates` button to scan the workspace archives and show all the duplicates in a dedicated window
- Added CLI command: `--check-duplicates <WORKSPACE_DIR>`.

v0.8.0
- Faster packing with lower memory overhead, especially on large workspaces.
- New Index-priority duplicate analysis (`--read-index` in CLI + GUI toggle). It reads Index (both old and new formats supported) from either the workspace or from the output folder.
- Better duplicate list window UX: winner/duplicate status in green / red colors, hide winners checkbox, better filtered copy output result via button, and added label "Effective duplicate bytes".

v1.0.0
- Added --info command: archive summary with file count, type distribution, sizes, and compression ratio.
- Added --verify command: CRC32 integrity check per entry without extracting files.
- Added --filter for selective unpack: glob-pattern matching (e.g. --filter "*.py", --filter "icon/*").
- Added atomic write for pack operations: writes to temporary files first, renames on success, cleans up on failure.
- Switched unpack and verify to streaming I/O: per-entry seek+read instead of loading entire archive into memory.
- Added --diff command: compare two archives showing added/removed/modified/unchanged entries.
- Added --dry-run for pack: preview file count and type distribution without writing.
- Added -q/--quiet flag: suppresses all output except errors.
- Added --json output mode for --list, --info, --verify, and --diff commands.
- Added --migrate command: re-encode archive entries to a different pack type (e.g. --migrate root --to-type 2).
- Added --watch command: monitors source folder and auto-repacks on file changes.

v1.1.0
- Significantly faster unpack, verify, and migrate operations — archives are now memory-mapped instead of reading file-by-file
- Faster pack operations with reduced memory allocations
- Removed console progress counter during unpack that was causing slowdowns on CLI
- Fixed filter patterns with backslashes not matching correctly
- Smaller release binaries
- Internal code cleanup and consolidation

v1.2.0
- New --verify-crc flag: validates each file's CRC32 integrity during unpack, stopping on any mismatch
- GUI drag-and-drop: drag a folder or .eix file into the app to quickly pack/unpack or load its workspace

v1.3.0
- Added --force-index-type to select index encoding (EPKD / MCOZ / MCSP)
- EPKD - plain, unencrypted (useful for debugging)
- MCOZ - encrypted with LZO (this is the default one, same as before)
- MCSP - encrypted with Snappy
- Added --force-data-type alias for --forcetype
- Added index_type setting to PackMakerLite.json { "index_type": "epkd" }
- Added "Index encoding" dropdown to GUI config panel
- --migrate now respects index type setting
- Faster --migrate, --verify-crc, and --diff

v1.4.0
- Fixed a security issue where a specially crafted archive could extract files outside the intended folder. Unpack now blocks this automatically.
- Added 26 new automated tests covering more pack types, migration, search filtering, archive comparison, and error handling.

Edited March 23 by martysama0134

Amun · February 19

Marty paid me 10e to write a comment

TAUMP · February 19

martysama0134 · February 19

v0.2.0

implemented type 6 xtea(snappy)

v0.3.0

implemented output_directory_path & hybrid_candidate_discovery options
extended --list with filename_crc and data_crc
improved icon resolution

Spoiler

martysama0134 · February 19

v0.4.0

Added global Recent Workspaces support for the GUI

Spoiler

martysama0134 · February 20

v0.5.0

Added CLI archive search: `--search <WORKSPACE_DIR> <FILENAME_OR_PATTERN>`.
Added GUI `Search`.

Spoiler

martysama0134 · February 21

v0.6.0

Added installer PATH integration prompt to optionally add `packmakerlite-cli` to PATH.
Added portable/user utility scripts:
- `Register-Path-Env.bat`
- `Unregister-Path-Env.bat`

martysama0134 · February 28

v0.7.0

Added GUI `Check Duplicates` button to scan the workspace archives and show all the duplicates in a dedicated window
Added CLI command: `--check-duplicates <WORKSPACE_DIR>`.

Spoiler

martysama0134 · March 6

v0.8.0

Faster packing with lower memory overhead, especially on large workspaces.
New Index-priority duplicate analysis (`--read-index` in CLI + GUI toggle). It reads Index (both old and new formats supported) from either the workspace or from the output folder.
Better duplicate list window UX: winner/duplicate status in green / red colors, hide winners checkbox, better filtered copy output result via button, and added label "Effective duplicate bytes".

Spoiler

eddR · March 15

You know its a good release when there is no comments.

edit: shouldn't the duplicate checker, use some sort of match rate?

Edited March 15 by eddR

martysama0134 · March 16

14 hours ago, eddR said:

edit: shouldn't the duplicate checker, use some sort of match rate?

There are a lot of identical files, especially .sub files. The duplicate check is only meant to detect files with the same path across different packs. This is also why I require the pack\Index loading to determine their order. (top packs have priority, shadowing the rest)

Edited March 16 by martysama0134

martysama0134 · March 16

v1.0.0

Added --info command: archive summary with file count, type distribution, sizes, and compression ratio.
Added --verify command: CRC32 integrity check per entry without extracting files.
Added --filter for selective unpack: glob-pattern matching (e.g. --filter "*.py", --filter "icon/*").
Added atomic write for pack operations: writes to temporary files first, renames on success, cleans up on failure.
Switched unpack and verify to streaming I/O: per-entry seek+read instead of loading entire archive into memory.
Added --diff command: compare two archives showing added/removed/modified/unchanged entries.
Added --dry-run for pack: preview file count and type distribution without writing.
Added -q/--quiet flag: suppresses all output except errors.
Added --json output mode for --list, --info, --verify, and --diff commands.
Added --migrate command: re-encode archive entries to a different pack type (e.g. --migrate root --to-type 2).
Added --watch command: monitors source folder and auto-repacks on file changes.

martysama0134 · March 17

v1.1.0

Significantly faster unpack, verify, and migrate operations — archives are now memory-mapped instead of reading file-by-file
Faster pack operations with reduced memory allocations
Removed console progress counter during unpack that was causing slowdowns on CLI
Fixed filter patterns with backslashes not matching correctly
Smaller release binaries
Internal code cleanup and consolidation

martysama0134 · March 18

PackMakerLite-RS v1.2.0

New --verify-crc flag: validates each file's CRC32 integrity during unpack, stopping on any mismatch
GUI drag-and-drop: drag a folder or .eix file into the app to quickly pack/unpack or load its workspace

Edited March 18 by martysama0134

martysama0134 · March 23

v1.3.0

Added --force-index-type to select index encoding (EPKD / MCOZ / MCSP)
- EPKD - plain, unencrypted (useful for debugging)
- MCOZ - encrypted with LZO (this is the default one, same as before)
- MCSP - encrypted with Snappy
Added --force-data-type alias for --forcetype
Added index_type setting to PackMakerLite.json
- ```
{ "index_type": "epkd" }
```
Added "Index encoding" dropdown to GUI config panel
--migrate now respects index type setting
Faster --migrate, --verify-crc, and --diff

Edited March 23 by martysama0134

martysama0134 · March 23

v1.4.0

Fixed a security issue where a specially crafted archive could extract files outside the intended folder. Unpack now blocks this automatically.
Added 26 new automated tests covering more pack types, migration, search filtering, archive comparison, and error handling.

martysama0134 · March 28

PackMakerLite-RS v1.5.0

Added --cat <PACK_NAME> <FILENAME>: extract a single file from an archive to stdout without unpacking to disk
Added --deduplicate <WORKSPACE_DIR>: remove duplicate files from archives using Index priority ordering; repacks in memory without decode/re-encode
Added --install-skill: register the PackMakerLite AI agent skill for Claude Code and Codex CLI; use --install-skill local for per-project install
Added --json output for --pack, --unpack, --migrate, --search, and --check-duplicates; all operations now support --json
Changed GUI pack type dropdown now shows compression labels: 0 (Store), 1 (LZO), 2 (LZO+XTEA), 6 (Snappy+XTEA)

The skill will let you use the packmakerlite-cli in an efficient agentic way.

Lukkz · April 1

On 6/27/2020 at 1:55 PM, MEHOK said:

M2 Download Center

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On 2/19/2026 at 3:07 AM, martysama0134 said:

This is a reworked version of the PackMakerLite fully rewritten in Rust.

Hidden Content

Give reaction to this post to see the hidden content.

In the download folder you'll both find the portable zip and the setup. The context menu extension association will be done automatically in the setup.

It includes both the console version (-cli) and the gui version (-gui). The bats can be used to register custom extensions.

packmakerlite-cli:

Hide contents