Trusted and loved by thousands of people worldwide 
The world’s fastest & easiest subtitling platform
Creating subtitles and closed captions is time-consuming and expensive. With Sonix it’s both affordable and fast! It’s also super easy to customize your subtitles and captions just the way you want them.
“Sonix has been a game changer for our captioning business. After trying several other similar services, I found Sonix to be the most accurate, efficient, and cost-effective solution. The Sonix Editor makes the transcription clean-up process super easy. In addition to their quality product, any questions I have are promptly answered by friendly support staff.”
“In my line of work, in an industry that values accuracy and efficiency, Sonix has been absolutely essential. Transcripts are ready in minutes, and the intuitive interface allows me to quickly edit and export the files that I need. It’s difficult to quantify just how much time Sonix has saved me, but suffice to say it’s a lot”
Easily customize subtitles and captions 

Split captions
Split your subtitles in seconds by character length, time duration, and number of lines.
Edit and polish captions
Easily clean up your captions and fine-tune to the millisecond to perfect timing of display.
Customize captions
Customize your subtitles by font type, size, color, background and position.
Burn-in captions
Burn subtitles right into your video so you can share with anyone, anywhere with ease.
Create closed captions in minutes 



Seamlessly works with video editing software
Sonix works with popular video editing software like Adobe Premiere, Final Cut Pro, and Avid Media Composer. Simplify your workflow by editing captions and subtitles in Sonix, then export to Premiere or FCP in seconds.
SRT and VTT formats supported
The most commonly used subtitling and caption formats are SRT (Subrip) and VTT (Video Text Tracks). Sonix supports both making your workflow streamlined and simple.
Subtitles for your social media videos 
Stay calm. Lord knows Eve can't. #KillingEve pic.twitter.com/p0s3Z2abHh
— BBC America (@BBCAMERICA) September 15, 2019
Videos on social drive 10x engagement
Adding video to your social feeds will make it 10x more likely your visitors will engage with you and share your posts.
80% of social videos are watched with sound off
Did you know that 80% of social videos are watched with the sound off? Easily export subtitles from Sonix onto your Facebook, LinkedIn, and Twitter videos and get more clicks!
Do social videos right
There is a HUGE difference between doing a social video, and doing a video REALLY well. One of the biggest impacts you can make to your video is to add subtitles or captions.
Media creators: Automated subtitles in three easy steps 
Step 1: Create account
Create your Sonix account for free. Every trial account comes with 30 minutes free transcription. No credit card required.
Step 2: Upload your video
Upload your video file to our secure servers. We accept most file formats. We’re there to help along the way.
Step 3: Polish & export
Use our powerful editor to easily polish your transcript. Then, export your subtitles and captions as a SRT or VTT file.