SubEnvoy focuses on a niche but common problem: local videos with subtitles you can’t understand. Unlike typical subtitle tools, it works directly with local files (MKV, MP4, SRT), extracts or generates subtitles, and translates them with AI while preserving timing and context. No video upload is required — your media stays on your device. It also handles large subtitle files efficiently, making it practical for full-length movies and series.
Hi Product Hunt 👋
I built SubEnvoy to solve a very specific problem I kept running into:
I had videos with subtitles… but not in a language I understand.
This happens a lot with:
- Old or niche content
- Anime and foreign shows
- Random releases with mismatched subtitles
So I built a tool that works like this:
1. Load a local video or subtitle file
2. Extract or generate subtitles (if missing)
3. Translate them with AI (context-aware, not literal)
4. Export and watch anywhere
Key things I focused on:
- Works directly with local files (MKV, MP4, SRT, etc.)
- No video upload — media stays on your device
- Handles large subtitle files (full movies / series)
This is especially useful if you:
- Watch content in multiple languages
- Deal with incomplete or wrong subtitles
- Want a clean, usable SRT output
I’d really like to hear how you currently deal with subtitles in different languages, and what’s still frustrating about it.
Happy to answer any questions 🙌
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About SubEnvoy on Product Hunt
“Translate subtitles for your local videos with AI”
SubEnvoy was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #166 on the daily leaderboard. SubEnvoy focuses on a niche but common problem: local videos with subtitles you can’t understand. Unlike typical subtitle tools, it works directly with local files (MKV, MP4, SRT), extracts or generates subtitles, and translates them with AI while preserving timing and context. No video upload is required — your media stays on your device. It also handles large subtitle files efficiently, making it practical for full-length movies and series.
SubEnvoy was featured in Productivity (649.7k followers), Artificial Intelligence (466.2k followers) and Video (1.8k followers) on Product Hunt. Together, these topics include over 217.3k products, making this a competitive space to launch in.
Who hunted SubEnvoy?
SubEnvoy was hunted by Wan Yi. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how SubEnvoy stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Wan Yi