Online Subtitle Editor

Edit your subtitles directly in the browser. Fix errors, adjust timing, and perfect your captions with our intuitive editor.

Add Subtitles Now - It's Free
[Demo GIF/Video showing the tool in action]

How to Edit Subtitles Online

1

Upload Your Video

Drop your video file or paste a URL. We support MP4, MOV, and all common formats.

2

Auto-Generate Subtitles

Our AI transcribes your video with word-level accuracy. Edit any mistakes with our built-in editor.

3

Export & Share

Download your video with burned-in subtitles, or export as SRT for any platform.

Why Subtitles Matter

  • 🖥️Works in any browser
  • Real-timeLive preview as you edit
  • 100%Free editing features
  • NoSoftware to install

Everything You Need

✏️

Easy Text Editing

Click any subtitle to edit text, fix typos, or reword phrases.

⏱️

Timing Adjustment

Fine-tune start and end times for perfect synchronization.

Split & Merge

Split long segments or merge short ones for better readability.

👀

Live Preview

See your changes in real-time with video playback.

Mastering Online Subtitle Editing with Ease

Creating engaging videos is essential for platforms like YouTube, Vimeo, and social media. However, accurate subtitles are often overlooked, leading to viewer disengagement. Studies indicate that 80% of viewers are more likely to watch a video completely if it has subtitles. This underscores the importance of an effective subtitle editing tool that can enhance accessibility for diverse audiences, including those who speak different languages or have hearing impairments.

With the rise of video consumption across the globe, the demand for quality subtitles has never been higher. Viewers expect seamless experiences, which means that even minor transcription errors can lead to significant viewer drop-off. The need for precise timing and readability is critical, particularly for educational content, marketing videos, or entertainment. As video content becomes more universal, the ability to edit subtitles efficiently in real-time directly impacts viewer retention and satisfaction.

SubtitlesFast addresses these challenges with an intuitive online subtitle editor that operates entirely in your browser. Users can easily click to edit texts, adjust timings, and preview changes live, ensuring that subtitles enhance rather than detract from the viewing experience. Our AI-powered tool guarantees high accuracy in transcription, which can be further refined for clarity and impact. Get started today to streamline your subtitle editing process.

Pro Tips

Utilize Real-Time Preview

Take advantage of the live preview feature to see how your edits affect the overall flow of the video. This will help you catch timing issues and make immediate adjustments for optimal viewer experience.

Focus on Readability

When editing text, aim for clarity by using simple language and breaking long sentences into shorter segments. This enhances comprehension, especially for viewers with hearing difficulties or those watching in a second language.

Adjust Timing Thoughtfully

Ensure that subtitle timing aligns with speech by using the timing adjustment feature. This is particularly important for fast-paced dialogue or when multiple speakers are involved.

Keep Subtitles Brief

Avoid overcrowding the screen with too much text. Use the split and merge features to maintain a comfortable reading pace, ensuring viewers can follow along without feeling rushed.

Trusted by 10,000+ Content Creators

“I post daily and SubtitlesFast saves me hours every week. The accuracy is incredible.”

— Sarah

Travel Vlogger (500K subscribers)

“Finally, subtitles that don't look like garbage. My engagement went up 30% after switching.”

— Marcus

Tech Reviewer

“The AI picks up my accent perfectly. Way better than YouTube's auto-captions.”

— Priya

Lifestyle Creator

Frequently Asked Questions

Do I need to install anything?

No! Our subtitle editor works entirely in your web browser.

Can I edit AI-generated subtitles?

Yes! After AI transcription, you can edit all text and timing before export.

Can I import existing subtitle files?

Currently we focus on generating new subtitles. Editing existing SRT files is coming soon.

Is there a live preview?

Yes! Watch your video with subtitles in real-time as you make edits.

How much does it cost?

Editing is included free. Export with 3 free trials, then Premium starts at €13/month.

Start Adding Subtitles Today

Get professional subtitles in minutes. No credit card required.

Add Subtitles Now - Free