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Add captions to your Instagram Reels.
Animated, word-by-word captions for Reels, made automatically from your voice. Choose a video, pick a style, download and post.
Free to start · Your video stays on your device
Style
Position
Words per caption
3Edit captions
Tap a line to fix a word.
How it works
- Choose a video It opens in your browser.
- Get captions Every word is timed automatically.
- Pick a style Fix any word if needed.
- Download Ready for TikTok, Reels and Shorts.
Pick a style
Captions that look the same everywhere
Instagram can add automatic captions, but viewers can turn them off and the styling is limited. Captions burned into the video are part of the picture, look the way you chose, and stay when you post the same clip to TikTok or YouTube Shorts.
Made for vertical video
Subtylo keeps your video's shape, so a 9:16 Reel comes out as a 9:16 Reel. Captions are sized to the frame and can sit at the top, middle or bottom. Instagram puts your caption text and the music label at the bottom of a Reel, so Middle is the safe choice when you are not sure.
How to add captions to a Reel
- Choose the video from your phone or computer.
- Wait a few seconds while every word is timed.
- Pick a style and fix any word that came out wrong.
- Download the MP4 and upload it to Instagram as a Reel.
Common questions
Will the quality drop?
Free exports are 720p with a small watermark. With a plan you get up to 1080p (the size Instagram shows Reels at) without a watermark; a smaller source video is not enlarged.
Can I use it on an iPhone?
Yes, in Safari, which also opens MOV files.
Pricing
Free
$0
- Captions in 20 tested languages
- All styles
- 720p with a small watermark
- 20 videos a day
10-export pack
$7 one time
- 10 exports, no watermark
- 1080p and SRT files
- No subscription
Pro
$9 per month
- Unlimited exports (fair use), no watermark
- 1080p and SRT files
- Cancel anytime
Prices include tax. Full refund within 14 days.
Questions
Do I need an account?
No. Open the page and choose a video. If you buy a plan, you get an access code instead of an account.
Is my video uploaded?
No. The video is opened and rendered in your browser. Only its sound, converted to low-quality mono audio, is sent to our server for speech recognition, and we don't store it.
Which videos work?
Videos up to 3 minutes in the formats your browser can play: MP4 and WebM everywhere, MOV best in Safari. The video needs speech for captions to appear.
Which languages?
The language is detected from the speech and the captions are written in it (no translation yet). We measured 20 languages; Spanish, Italian, German and Russian get fewer than 4 words in 100 wrong, Hindi and Thai the most. See supported languages. You can fix any word before you download.
How long does the download take?
About as long as the video itself: a 30-second video takes about 30 seconds, because your browser plays it once while burning in the captions. Keep the tab open while it runs.
Which file do I get?
An MP4 in Chrome, Edge and Safari, which works everywhere. Firefox makes a WebM file; for TikTok and Instagram use Chrome, Edge or Safari.
How do I cancel or get a refund?
Cancel Pro anytime at app.link.com or by email. Ask within 14 days of a payment and you get the full amount back; see the refund policy.
How big can my video be?
Up to 3 minutes long and 1.5 GB. Any shape works: vertical 9:16, square or landscape; the download keeps your video's shape.
Does it work on my phone?
Yes, in your phone's browser (Safari or Chrome). If you opened this page from Instagram or TikTok, open it in your browser first, because downloads may not work inside those apps. Keep the tab open while your video is made.
How do I get help?
Email support@usefulshed.com with what you tried and, if you bought a plan, your access code or the email you paid with.