Add subtitles to 3GP videos

Sonix automatically transcribes your 3GP video and lets you add professional subtitles with customizable styling.

Auto-transcribe
Custom styling
Burn-in option
Audio
Video
DOCX
SRT/VTT
PDF
53+ Languages
10x
Faster than real-time
Add subtitles to 3GP in minutes
99%
Accuracy rate
Industry-leading AI transcription
53+
Languages
Subtitles in any language
Custom
Styling
Fonts, colors, positioning
How It Works

Add subtitles to 3GP in 4 steps

Step 1

Upload video

Upload your 3GP video file to Sonix and select the language.

Step 2

Auto-transcribe

Sonix AI transcribes your video with word-level timestamps.

Step 3

Customize subtitles

Split subtitles, adjust timing, and customize fonts and colors.

Step 4

Export or burn-in

Download SRT/VTT files or burn subtitles directly into your video.

Common Questions

Everything about adding 3GP subtitles

Can Sonix add subtitles to 3GP videos?

Yes! Upload your 3GP video, and Sonix will transcribe it and let you add professional subtitles with customizable styling.

Can I burn subtitles into the video?

Yes! Sonix can permanently embed (burn-in) subtitles into your 3GP video with your choice of fonts, colors, and positioning.

What subtitle styles are available?

Customize fonts, colors, background boxes, positioning (top, center, bottom), and more for your burned-in subtitles.

Can I download subtitle files separately?

Yes! Export subtitles as SRT, VTT, or other formats to use with YouTube, Vimeo, or your video editor.

Can I translate subtitles to other languages?

Absolutely! Sonix can translate your subtitles into 54+ languages for multilingual videos.

How do I split subtitles correctly?

Sonix offers auto-split options for max characters per line, lines per caption, and max duration. Fine-tune manually if needed.

Why Sonix

The easiest way to add video subtitles

Auto-Transcribe

Upload your 3GP and get accurate subtitles automatically.

Custom Styling

Choose fonts, colors, and positioning for professional results.

Burn-in Option

Permanently embed subtitles into your video with one click.

Translate

Create subtitles in 53+ languages from your original video.

Reviews

Trusted by video creators

4.98 rating from 211 reviews

Way better than other transcription services I've tried. It will save me a lot of time. I'd recommend it to everyone I know.
GM
Ginette M.
Austin, Texas USA
Super easy interface, easy to upload and great results.
DK
Dan K.
Seattle, OR, USA
Very cool and fascinating too. Ahh the power of algorithms. I can tell you that I love the overall UI experience because it's pretty, dumbed down, and very easy for me to use. I've...
AF
Angela F.
San Francisco, CA USA
It was super easy, affordable, and accurate!
AL
Allison L.
Ellsworth, WI, USA
Fantastic product and service. Fast, great quality transcript, great online editing facility. Whole experience was easy and problem free.
SL
Sonia L.
Perth, Australia
I am very happy to have found a transcription service that provides such a high percentage of perfect content.
ES
Eric S.
Toronto, Canada
Get Started

Add subtitles to 3GP now

Try Sonix free with 30 minutes of transcription. No credit card required.

99% accuracy. Every word matters.

AI transcription and translation in 53+ languages.

30 minutes free
No credit card
Cancel anytime