Free TikTok subtitles generator
Subtrims is free, English-only, and runs speech-to-text locally in your browser. No credit card needed.
Captions that keep people watching
Plenty of TikTok viewers scroll with the sound off, and even with sound on, on-screen words help them follow along. Short, punchy captions of two to four words are easy to read at a glance without pulling attention from the video.
How it works
- Upload your TikTok clip or its audio.
- Pick 2, 3, 4 or 5 words per caption; 3 is a popular short-form default.
- Turn on ALL CAPS for the bold look.
- Generate, then click any caption to correct a word.
- Download SRT with timecodes, or TXT with the caption text only.
Getting the captions onto your video
Subtrims creates subtitle files; it does not burn captions into the video. Import the SRT into an editor that supports it, for example Premiere Pro, which imports SRT as a caption track. Style it there and export your final video for TikTok. The same file works for Instagram Reels and YouTube Shorts versions of the clip.
What the file looks like
Each caption in an SRT is a number, a start and end time (hours:minutes:seconds,milliseconds), the text, and a blank line. Here is a short illustrative example of 3-word captions where punctuation ends a caption early:
1
00:00:00,000 --> 00:00:01,200
YOU HAVE A STORY.
2
00:00:01,200 --> 00:00:02,600
MAKE EVERY WORD
3
00:00:02,600 --> 00:00:03,500
COUNT.
Tips for cleaner captions
- Record with a decent mic and keep music low under speech.
- One speaker at a time gives the most accurate transcript.
- Fix names, brands and slang in the caption list before you export.
- Start with 3 words per caption; go to 2 for very fast edits or 4–5 for slower talking-head videos.
- Use ALL CAPS for a bold short-form look, or leave it off for a calmer style.
Which files to upload
Try MP4, MOV, WebM, MP3, WAV, M4A or OGG. Decoding support depends on your browser and the media codec. If a video cannot be read, export its audio as WAV or MP3 and upload that instead. Short clips work best.
Limits worth knowing
The free version handles English clips up to 5 minutes and 100 MB, with no credit card needed. There is no translation. The first run downloads the speech model, so it can take a few minutes; later runs reuse the cached model. Accuracy is best with clear speech: background noise, overlapping speakers, names and accents can cause mistakes, so skim the captions before exporting.
Privacy
Your media is decoded and transcribed locally on your device. The site does not upload or store your audio or video, which makes Subtrims a good fit for client footage or interviews you would rather keep off third-party servers.