Ameko

Ameko 1.2.2

Cross-platform editor for Advanced Substation Alpha (ASS) subtitles

  • By AmekoProject
  • Open Source
  • Portable
  • Updated Aug 16, 2026
Download for Windows

About Ameko

Ameko is an editing suite for Advanced Substation Alpha (ASS) subtitles.

What's new in 1.2.2

Hotfix
This release addresses an issue discovered in 1.2.0 where Ameko would crash and restart upon closing the program on Windows.
New Features
Timing with the Audio Visualizer
- View timestamps
- Time subtitles with left/right click
- Seek video with middle click
- Two timing modes: Snap to Frame (default), Free Placement
- Temporarily switch with Shift, or swap default in settings
Subtitle Profiler
- Benchmark render time, image size, and image count
- Choose between all events, selected time range, or selected events
- Export results to CSV
Scripting
- New Scripting Playground experience - More details on the wiki
- View the source code of scripts before installing them
- View and modify the source code of installed scripts
Linux
- Drag and Drop
Other
- Start with --safe to temporarily disable script loading
- New layout for working with vertical video
- Window state persists across restarts
- Unmanaged crashes now trigger crash reporter
Fixes
- Fixed crash when opening a video while opening a video
- Fixed crash when opening About box
- Fixed loading of Files\ with\ spaces from the command-line
- Fixed incorrect frame seek calculation
- Fixed Command Palette sometimes closing instantly
Full Changelog: v1.1.0...v1.2.2
Pre-built binaries are attached below. For Arch Linux users, there's also a PKGBUILD.
Huge thanks to everyone who's contributed to the localization efforts, especially CiferrC! If you're interested in helping out, head over to the Crowdin project page!
You can submit bugs and feature requests to the issue tracker directly, or head over to the Discord server or discussions page for a conversation.
I hope you continue to enjoy using Ameko!

Full release notes »

Technical details

PublisherAmekoProject
Author9vult
Version1.2.2
Release date2026-08-16
LicenseGPL-3.0
Installer typezip
Architecturex64
Package IDAmekoProject.Ameko

Install Ameko from the command line

Install with Windows Package Manager
winget install --id=AmekoProject.Ameko -e
Update to the latest version
winget upgrade --id=AmekoProject.Ameko -e
Uninstall
winget uninstall --id=AmekoProject.Ameko -e

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Ameko version history

1.2.0 Aug 15, 2026

New Features
Timing with the Audio Visualizer
- View timestamps
- Time subtitles with left/right click
- Seek video with middle click
- Two timing modes: Snap to Frame (default), Free Placement
- Temporarily switch with Shift, or swap default in settings
Subtitle Profiler
- Benchmark render time, image size, and image count
- Choose between all events, selected time range, or selected events
- Export results to CSV
Scripting
- New Scripting Playground experience - More details on the wiki
- View the source code of scripts before installing them
- View and modify the source code of installed scripts
Linux
- Drag and Drop
Other
- Start with --safe to temporarily disable script loading
- New layout for working with vertical video
- Window state persists across restarts
- Unmanaged crashes now trigger crash reporter
Fixes
- Fixed crash when opening a video while opening a video
- Fixed crash when opening About box
- Fixed loading of Files\ with\ spaces from the command-line
- Fixed incorrect frame seek calculation
- Fixed Command Palette sometimes closing instantly
Full Changelog: v1.1.0...v1.2.0
Pre-built binaries are attached below. For Arch Linux users, there's also a PKGBUILD.
Huge thanks to everyone who's contributed to the localization efforts, especially CiferrC! If you're interested in helping out, head over to the Crowdin project page! …

1.1.0 Jun 7, 2026

New Features

  • Key Names & Terms (KNP) support in Project files
  • Partial or full language support for: English (GB), Polish, German, Spanish (LATAM), Vietnamese,
  • and Chinese (Traditional)
  • Support ASS v4.00 and v4.00++
  • Scripting: New SDK for developing with IntelliSense and type hinting
  • Scripting: Call scripts from scripts
  • Scripting: Mutable Tag & Block API

Fixes

  • Fixed broken dylibs on macOS
  • Fixed crash when using Styles Manager buttons
  • Fixed CPU compatibility build issue
  • Use correct encoding for spellcheck dictionaries
  • Force OpenAL on macOS to avoid memory leak (thanks @5fish!)
  • Fixed issue where frames might not be displayed when seeking while paused
  • Fixed issue where frames might not be displayed when playback ends
  • Added I/O permissions error handling
  • Fixed culture issues when writing files

Huge thanks to everyone who's contributed to the localization efforts! If you're interested in
helping out, head over to the Crowdin project page!

You can submit bugs and feature requests to the issue tracker directly, or head over to the Discord
server or discussions page for a conversation.

I hope you continue to enjoy using Ameko!

Frequently asked questions

Is Ameko free?

Yes. Ameko is free and open-source software released under the GPL-3.0 license.

What is the latest version of Ameko?

The latest version is 1.2.2, released on Aug 16, 2026.

Is it safe to download Ameko?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 5bbd1a364ba6524a29bb96cc385f1d7467c7c575627228b8993bef70093f175c.

Which Windows versions does Ameko support?

Ameko runs on Windows and is available for 64-bit (x64) systems.

How do I uninstall Ameko?

Open Settings › Apps › Installed apps, find Ameko and select Uninstall. From the command line, run winget uninstall --id=AmekoProject.Ameko -e.

Is there a portable version of Ameko?

Yes. Ameko is available as a portable ZIP archive (ameko-win-x64-1.2.2.11a2a4a.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.