To add captions to an Instagram Reel for free, drop the video into Karaoke Captions, check the automatically timed words, pick a style and export an MP4 with the captions burned in. Then upload that file as your Reel. It takes about a minute, there’s no watermark, and the video never leaves your device.
Instagram’s own captions vs burned-in captions
Instagram can generate captions for a Reel, but viewers see them only if captions are switched on for their account, you can’t design them, and the style is the same small subtitle every Reel uses. Burned-in captions are part of the picture: every viewer sees them, on mute or not, in exactly your style, and they survive downloads, reposts and cross-posting to TikTok or Shorts.
| Instagram auto captions | Burned-in (Karaoke Captions) | |
|---|---|---|
| Seen by | Viewers with captions on | Everyone |
| Style | Fixed | Your font, colours, size and animation |
| Word-by-word highlight | No | Yes, each word lights up as it’s said |
| Survives reposts and cross-posting | No | Yes, they’re in the video |
| Edit the wording | Limited | Every word, before export |
Where to put captions on a Reel
- Bottom 420 px: username, follow button, caption and audio.
- Right 140 px: like, comment, share, save and the audio thumbnail.
- Top 220 px: the Reels header and camera icon.
- The feed crop: Reels can appear cropped to 4:5 in the main feed, trimming the top and bottom of the frame. One more reason to keep captions near the middle.
Aim for 55%–70% of the way down, centred. Full numbers for every app: caption safe zones.
How to add captions to a Reel, step by step
- Export your edit as 9:16. 1080×1920 is ideal. Any vertical video from your camera roll works.
- Drop it into Karaoke Captions. Speech is transcribed on your device and every word is timed.
- Fix names and slang. Click any line in the transcript to edit it.
- Choose a style and position. Classic is free; Pro has 69 animated styles. Set the position to Middle.
- Export the MP4 and post it. Upload it in Instagram as a Reel as usual. No watermark, so it won’t be flagged as a repost of another app’s export.
Caption tips that suit Reels
- Hook in the first line. Viewers decide in a second or two. Make sure the opening words are on screen from the first frame.
- High contrast over busy footage. Instagram’s audience scrolls through bright, colourful video; an outline or a box behind the text keeps captions readable over all of it.
- Match your grid. Save your caption style once (“My styles”) and every Reel keeps the same look.
- Post the same file everywhere. A Reel with burned-in captions is ready for TikTok and YouTube Shorts as is.
Frequently asked questions
Does Instagram add captions to Reels automatically?
Instagram can generate captions, but viewers only see them with captions switched on, and you can’t style them. Burned-in captions are visible to everyone and look the way you design them.
How do I add captions to a Reel without CapCut?
Drop the video into Karaoke Captions in your browser, check the words, pick a style and export the MP4. No app to install, no account and no watermark.
Where should captions go on a Reel?
Just below the middle: about 55%–70% of the way down, centred. The bottom 420 px and the right 140 px are covered by Instagram’s interface.
Will the captions look blurry after Instagram compresses the video?
Bold fonts with an outline survive compression well. Export at your video’s own resolution, ideally 1080×1920, and avoid very thin typefaces.
Can I caption Reels on my phone?
Yes, in your phone’s browser, for shorter clips. A computer is faster for long videos.