Add Subtitles To Your MP4 For Free Online

Add Subtitles to MP4 in 3 Steps

01
Sign Up and Upload Your Video
Sign up for Descript and create a new project. Simply drag and drop your MP4 video into the project window. Descript will automatically begin transcribing your video, making it easy to add subtitles.
02
Export Subtitles from Transcription
Once the transcription is complete, click on "Underlord," type "Subtitles" into the search bar, and select "Export Subtitles." This will generate a subtitle file that you can easily add to your MP4 video, ensuring your content is accessible and engaging for all viewers.
03
Choose Subtitle Format and Verify MP4 Extension
Under the 'Subtitles' tab, select your preferred subtitle format. Ensure the exported file name ends with the correct MP4 extension to maintain compatibility. This step is crucial for seamless playback across various devices and platforms.

Add Subtitles to MP4 Videos Effortlessly

Fast, accurate subtitles in 22+ languages
Descript offers fast, accurate subtitles in over 22 languages, making it easy to add subtitles to your MP4 files. Enhance accessibility and reach a global audience effortlessly. Whether you're creating educational content or marketing videos, Descript ensures your message is clear and understood by everyone.
Always auto-synced captions
Descript's always auto-synced captions ensure your MP4 videos are accessible and engaging. As you edit, captions automatically adjust, saving you time and effort. This feature guarantees that your subtitles are always in perfect sync, enhancing viewer comprehension and making your content more professional.
Generate subtitle files with speaker labels & time codes
Enhance your MP4 videos with Descript's subtitle generation feature. Automatically create subtitle files complete with speaker labels and time codes, ensuring clarity and accessibility. This tool simplifies the process, making your content more engaging and easier to follow for all viewers.

More than a Subtitle Adder

Descript is an AI-powered audio and video editing tool that lets you edit podcasts and videos like a doc.

Captions & subtitles
Effortlessly add captions and subtitles to your MP4 videos, enhancing accessibility and viewer engagement with Descript's intuitive tools.
Transcription
Effortlessly transcribe your MP4 videos with Descript, making it simple to add accurate subtitles for enhanced accessibility and engagement.
Multi-track editor
Effortlessly add subtitles to MP4 files using Descript's multi-track editor, ensuring precise synchronization and seamless editing.
Collaboration
Collaborate seamlessly with your team to add accurate subtitles to MP4 files, ensuring everyone can contribute and review in real-time.

Don’t just take our word for it

With a 4.6-out-of-5-star rating and a bunch of distinctions on G2, Descript’s users have declared it an industry standard in the video and podcasting world.

2025

Best Software

Video Editing

Text to Speech

Screen and Video Capture

“With Descript I'll be able to at least double my content output since editing is taking one-quarter the time it used to.”

Donna B.

“With Descript we can create videos for our YouTube channel and our LinkedIn page much faster and with high quality.”

Balázs N.

“Descript has made cleaning up and creating my educational videos into professional presentations [possible] without needing extensive technical computer skills.”

Barbara C.

“Descript makes recording and editing audio and video a breeze. It's advanced features have streamlined my workflows, saving me a lot of time usually spent editing.”

Roderick F.

“The collaborative tools streamline teamwork, allowing my team and me to work efficiently together on projects. Overall, Descript enhances productivity and simplifies the editing process.”

Aldrich M.

“Transcription based editing makes the process much faster…All in all, a must have editor for most audiences, especially in SaaS marketing.”

Nidhin M.

Surely there’s one for you

Free

no credit card required

Start your journey with text-based editing

Get started

1 transcription hour / month

Export 720p, with watermarks

Limited trial of Basic AI Actions

Limited trial of AI Speech

Hobbyist

$16

per person / month, billed annually

Elevate your projects, watermark-free

Get started

10 transcription hours / month

Export 1080p, watermark-free

20 uses / month of Basic AI Actions suite including Filler Word Removal, Studio Sound, Draft Show Notes, Create Clips, and more

30 minutes / month of AI speech with stock AI speakers and custom voice clones

5 minutes / month of avatars

Questions? We have answers

What file formats does the subtitle tool support besides MP4?
Besides MP4, the subtitle tool supports various file formats including AVI, MOV, and MKV. This ensures flexibility and compatibility with a wide range of video files, making it easier to add subtitles to your preferred format.
Can I customize the appearance of the subtitles added to my MP4 files?
Yes, you can customize the appearance of the subtitles added to your MP4 files. Descript allows you to adjust font style, size, color, and positioning to match your preferences, ensuring your subtitles are both readable and visually appealing.
What pricing plans does Descript offer for individual users and teams?
Descript offers flexible pricing plans for both individual users and teams. Individual plans start with a free tier, while paid options include the Creator plan at $12/month and the Pro plan at $24/month. Teams can opt for customized plans based on their specific needs.
Does Descript provide any collaboration features for team projects?
Yes, Descript offers robust collaboration features for team projects. Team members can work together in real-time, leave comments, and track changes, ensuring seamless communication and efficient project management.