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Video caption generator — Hindi, Hinglish and English captions for Reels, Shorts and YouTube
Choose a video and press Generate: what is said becomes captions, timed to the speech — in Hindi, English and 97 more languages. Turn Hindi into Hinglish in one click, style the captions the way Reels look, and download an SRT file or the captioned video.
- Up to 10 minutes a video on Free — new accounts start with 1,000 free credits
- Captions in 99 languages, Hinglish in one click
- Your video stays on your device — only its sound is sent
Captions that read right — and look like Reels
- Hindi that reads rightMade for Hindi speech: numbers are written as numbers (“702 करोड़”, “23.69 प्रतिशत”), and the names box spells names and brands your way.
- Hinglish in one clickCaptions in Devanagari? Change them to Hinglish in Roman letters — or to English, or to Hindi — line for line, with the timing kept.
- Captions the way Reels lookWord by word with the spoken word highlighted, pop, bounce, karaoke or glow — five styles, any size and colour, and a Reels/Shorts safe-zone guide.
- Fix anythingEdit words and times, split and join lines, find and replace, move every caption at once — undo is always there, and your work is kept on your device.
- SRT, or the finished videoDownload a TXT free, SRT and VTT files for YouTube with a plan or a top-up, or make the captioned video right on your device — 9:16, 1:1, 4:5 or 16:9.
- Your video stays yoursThe video never leaves your phone or computer. Only a small audio track goes to make the captions, and it is deleted once they are made.
Made a story in the Studio? Its captions are free
Under every story video in the Studio, press Get it ready for Captions: the video opens here with every line already timed to your story — no credits, nothing uploaded. Pick Word pop and make it a Reel.
What it costs
- Captions from speech
- 30 credits a minute of video — the minutes the audio didn’t need are given back
- Hinglish, English or Hindi
- 30 credits for every 50 lines converted (or every 2,500 characters, if the lines are long)
- Captions for a Studio story
- No credits — its lines are already timed
- Free
- Up to 10 minutes a video, TXT download, a small “Captions by BoliLabs” mark on videos
- With a plan or any top-up
- Up to 3 hours a video, SRT and VTT files, videos without the mark
A failed job gives every credit back. The 1,000 free credits of a new account make about 33 minutes of captions. Plans & top-ups
How to add captions to a video
Nothing to install — it runs in your browser, on a phone or a computer.
- Choose your videoMP4, MOV, WebM or MKV — from your phone’s gallery or your computer. It plays right there.
- Generate the captionsPick the language (or leave Auto-detect), add any names, and press Generate. A few minutes of video usually take about a minute.
- Fix and styleCorrect a word, convert to Hinglish, pick a style and where the captions sit — what you see is what you get.
- DownloadAn SRT file for YouTube, the text, or the captioned video — made on your device, the full length.
Questions about video captions
Is the caption generator free?
Signing up is free and a new account starts with 1,000 free credits — about 33 minutes of captions. On Free a video can be up to 10 minutes and the captioned video has a small “Captions by BoliLabs” mark; a plan or any top-up gives up to 3 hours a video, SRT and VTT files and no mark.
Can it make Hindi captions in English letters (Hinglish)?
Yes. Make the captions in Hindi, then press Convert and pick Hinglish: every line is rewritten in Roman letters, with the timing kept. You can also convert to English, or to Hindi in Devanagari. It costs 30 credits for every 50 lines (or every 2,500 characters, if your lines are long).
Which languages does it understand?
99 languages, including Hindi, English, Bengali, Marathi, Tamil, Telugu, Gujarati, Kannada, Malayalam, Punjabi and Urdu. Leave Auto-detect on, or pick the language for the best result.
Is my video uploaded?
No. The video stays on your device: the captions are drawn into it right there. Only a small audio track is sent to make the captions — to our speech-to-text partner, AssemblyAI — and it is deleted once the captions are made.
How do I add captions to an Instagram Reel or a YouTube Short?
Choose the video, press Generate, pick a style such as Word pop and set the position to Reels so the app’s buttons don’t cover the captions — the safe-zone guide shows where they fall. Then make the captioned video and post it.
Can I get an SRT file for YouTube?
Yes — with a plan or any top-up, download SRT or VTT and upload it in YouTube Studio under Subtitles. A plain TXT of the captions is free for everyone.
How long can the video be?
Up to 10 minutes on Free and up to 3 hours with a plan or a top-up. For a longer video, pick a part of it with the clip tool and make captions for just that part.
Add captions to your next Reel
Open Captions, choose a video and press Generate. Your first 1,000 credits are on us.