Aegisub was the go-to subtitle editor for over a decade — especially in the anime fansubbing community. It's free, open source, and has powerful ASS/SSA styling tools that no other free editor matched. After a long quiet stretch it's active again — version 3.4.2 shipped in January 2025 — but on Mac it ships only as an unsigned build (you have to bypass Gatekeeper to run it), and it's still a purely manual editor without the AI tooling modern subtitle work expects.
If you're searching for "Aegisub alternative" because you need features it never had (AI transcription, translation, burn-in), this guide compares Aegisub with GeekLink — a native macOS subtitle editor built for modern workflows.
Is Aegisub Still Working on Mac in 2026?
Yes. After years of quiet, Aegisub returned with v3.4.0 (December 2024) and v3.4.2 (January 2025), rebuilt on a cross-platform UI with official macOS builds. The catch for Mac users:
- Unsigned Mac build: the official macOS download isn't notarized — Apple denied the developer's account — so macOS Gatekeeper blocks it on first launch (right-click → Open, or allow it in System Settings)
- Manual editor only: no AI transcription, OCR, translation, or burn-in — Aegisub edits subtitle files, it doesn't generate or process them
- Steep learning curve: the interface is built for typesetters and power users, not casual creators
- No batch or video pipeline: one file at a time, with no way to transcribe, translate, or burn subtitles into many videos in one pass
For manual ASS styling and timing, Aegisub is still excellent — and actively maintained again. The question is no longer whether it runs on Mac, but whether a manual-only editor fits a workflow where you also need to generate, translate, and burn in subtitles.
What Aegisub Does Well — and Where It Stops
At its peak, Aegisub was unmatched for manual subtitle editing: advanced ASS/SSA styling (fonts, colors, positioning, karaoke effects), audio waveform display for precise timing, and a real-time preview of styled subtitles. For anime fansubbers and subtitle professionals who already have transcribed text and just need to time and style it, these tools were — and in some cases still are — best in class.
But Aegisub was designed in a pre-AI era, and its scope was always limited to editing existing subtitle files:
- No AI transcription: Cannot generate subtitles from speech — you must type or import every line manually
- No hardcoded subtitle extraction: Cannot read burned-in subtitles from video frames
- No translation: No built-in translation of any kind — you need to translate externally and paste results back
- No subtitle burn-in: Cannot export a video with subtitles baked in — you need ffmpeg or a video editor
- No batch processing: Strictly one file at a time — no way to process multiple videos
- No active development: Bug reports and feature requests have gone unanswered for years
GeekLink: A Modern Mac Alternative
GeekLink approaches subtitle work differently. Instead of just editing subtitle files, it handles the entire pipeline: generate subtitles from speech using AI, extract hardcoded subtitles via OCR, translate between 40+ languages, edit and style the results, and burn subtitles back into the video — all in a single native Mac app.
Key differences from Aegisub:
- AI generates your subtitles — instead of typing every line, import a video and get subtitles generated automatically from speech. Multiple model sizes let you balance speed vs. accuracy.
- OCR extracts hardcoded subtitles — have a video with burned-in subtitles and no SRT file? GeekLink reads text directly from video frames.
- Built-in translation — translate subtitles between 40+ languages without leaving the app. No copy-pasting to Google Translate.
- Batch processing — import 50+ videos and process them all at once: transcribe, translate, and burn-in.
- Subtitle burn-in with styling — export videos with subtitles baked in, with full control over font, color, size, position, and shadow.
- Native Apple Silicon app — built for modern macOS, no compatibility hacks. Runs reliably on Sonoma, Sequoia, and future updates.
- 100% offline — all AI models run locally. No cloud upload, no data privacy concerns.
- AI flags the lines to check — instead of re-reading every line by hand, GeekLink marks the low-confidence subtitles so you review only the ones it's unsure about (how it works).
Aegisub vs GeekLink: Feature Comparison
| Feature | Aegisub | GeekLink |
|---|---|---|
| Actively Maintained | Yes — active again (v3.4.2, Jan 2025) | Yes (regular updates) |
| Apple Silicon Native | Yes (native build, unsigned) | Yes |
| AI Speech-to-Text | No | Yes (multiple models, offline) |
| Hardcoded Subtitle OCR | No | Yes (offline) |
| Translation | No | Yes (40+ languages) |
| Batch Processing | No | Yes (50+ videos at once) |
| Subtitle Burn-in | No | Yes (with style customization) |
| Bilingual Subtitles | Manual only (ASS tricks) | Yes (built-in dual language) |
| ASS/SSA Advanced Styling | Yes (industry-leading) | Basic (font, color, size, position, shadow) |
| Audio Waveform Timing | Yes | Yes |
| Price | Free (open source) | Free tier / $12.99/mo Pro |
Who Should Use Which?
Aegisub may still work for you if: You do anime fansubbing with complex ASS karaoke effects, you already have all your text transcribed and only need timing/styling, and Aegisub happens to run stable on your specific macOS version.
GeekLink is a better fit if: You need to generate subtitles from video (not just edit existing files), you work with multiple videos or languages, you want a single app for the full workflow (transcribe → translate → style → burn-in), or you're tired of Aegisub's manual-only workflow and the Gatekeeper hassle on Mac.
Disclosure: GeekLink is our product. Aegisub was a pioneering tool that shaped subtitle editing for an entire generation — we respect its legacy. This comparison reflects the current state of both tools in 2026.
FAQ
Is Aegisub dead?
No. After a long quiet period, Aegisub returned with v3.4.0 (December 2024) and v3.4.2 (January 2025), so it's actively maintained again. On Mac the official build is unsigned, so macOS may block it on first launch — right-click the app and choose Open to run it. It remains a manual ASS editor, though: no AI transcription, OCR, translation, or burn-in.
Does Aegisub run on Apple Silicon Macs?
Yes. The current Aegisub (v3.4.2, January 2025) provides official macOS builds, including for Apple Silicon. The catch is that the Mac build isn't notarized by Apple (the developer was denied a Developer Account), so macOS Gatekeeper blocks it on first launch — right-click the app and choose Open, or allow it under System Settings → Privacy & Security.
What is the best free alternative to Aegisub?
For manual subtitle editing similar to Aegisub, Subtitle Edit (Windows) is the closest free alternative. On Mac, GeekLink offers a free tier with AI transcription, OCR extraction, and basic editing — though its focus is on automated workflows rather than manual ASS styling.
Can GeekLink open Aegisub ASS files?
Yes. GeekLink can import ASS subtitle files. However, GeekLink doesn't support all of Aegisub's advanced ASS features (like karaoke effects or complex override tags). For standard styled subtitles (font, color, size, position), it works well.
Does Aegisub have AI subtitle generation?
No. Aegisub was built before AI transcription existed and has never added this feature. You must type or import all subtitle text manually. GeekLink generates subtitles from speech automatically using built-in AI models that run offline on your Mac.