Free Online Subtitle Editor & Translator
Edit, translate, and convert subtitles in SRT, VTT, ASS formats. No installation required — works directly in your browser with AI-powered translation to 100+ languages.
or drag and drop
Supported formats: .srt, .vtt, .sbv, .sub, .ass, .ssa
Features
Everything You Need to Work With Subtitles
A complete toolkit for editing, translating, and converting subtitle files — right in your browser.
- Precise Subtitle Editing
- Edit text, adjust timing to the millisecond, and preview changes with your video. Supports SRT, VTT, ASS, SSA, and SBV.
- AI-Powered Translation
- Translate subtitles to 100+ languages in one click. Create bilingual subtitles for language learning or global reach.
- Format Conversion & Export
- Convert between SRT, VTT, ASS, and other formats. Download individually or batch export as a zip package.
What is EditSub?
EditSub is a free, web-based subtitle editor that lets you upload, edit, translate, and export subtitle files in SRT, VTT, ASS, SSA, and SBV formats — compatible with YouTube, video players, and professional editing software.
Edit & Sync Subtitles
Modify subtitle text, adjust timing down to milliseconds, and preview changes alongside your video. Whether you're fixing a single line or managing an entire project, the editor keeps things fast and precise.
- Supports SRT, VTT, ASS, SSA, and SBV formats
- Real-time editing with video preview
- Millisecond-accurate timing controls
Translate to 100+ Languages
Use AI-powered translation to convert subtitles into over 100 languages. Generate bilingual subtitles for language learning or localize content for international audiences.
- AI translation for 100+ languages
- Bilingual subtitle export
- Cloud storage for registered users
Who Uses EditSub?
Content creators, translators, educators, and video professionals rely on EditSub to manage subtitles efficiently.
Content Creators
Add subtitles to YouTube videos, social media content, and vlogs to reach wider audiences.
Language Learners
Study with bilingual subtitles to improve listening comprehension and vocabulary.
Professional Subtitlers
Fine-tune timing, convert formats, and manage multiple subtitle projects.
Video Editors
Synchronize subtitles with edited footage for films, documentaries, and corporate videos.
Marketing Teams
Localize product demos and training videos with multilingual subtitles.
Accessibility Advocates
Create accurate captions for deaf and hard-of-hearing audiences.
How It Works
Edit and translate subtitles in just a few steps — no software installation required.
Upload Your File
Upload a subtitle file (SRT, VTT, ASS, SSA, SBV) or paste text directly into the editor.
Edit Text & Timing
Modify subtitle text, fix timing, and fine-tune synchronization with your video.
Translate
Translate subtitles to 100+ languages using AI. Optionally keep the original text for bilingual output.
Preview
Review your subtitles with video preview to ensure everything looks right.
Export
Download subtitles in your preferred format — SRT, VTT, ASS, or plain text.
Frequently Asked Questions (FAQ)
- Is Editsub really free?
Yes, Editsub is completely free to use. We do not charge any fees for our services or hide any premium features behind a paywall.
- What subtitle formats does Editsub support?
We support a wide range of popular subtitle formats including SRT, VTT, ASS, SSA, and more. If you need support for a specific format that's not listed, please contact us.
- How do I sync my subtitles with the video?
Editsub provides an intuitive interface for manually adjusting subtitle timings. You can easily shift, stretch, or compress subtitle timings to match your video content. You can upload a video file to the editor to preview subtitles in real-time and adjust timing visually. The tool supports common video formats and allows frame-accurate timing adjustments.
Ready to Edit Your Subtitles?
Start editing, translating, and converting subtitles for free — no sign-up required.