Subtitle Editor

Edit subtitle text and timing online, correct names and terminology, translate when needed, and export a clean caption file.
Open a project, check the AI-assisted result, and deliver the format you need.
EasySub Subtitle Editor with a marine biologist, editable English caption, styling controls and draggable timeline boundaries

Subtitle Editor

EasySub Edit caption timing panel with start, end, duration, waveform and timeline controls
Correct the wording against the source, then align the caption start and end with the speaker using the waveform and playhead.
EasySub Export subtitles dialog downloading an edited English reef documentary subtitle file as SRT
Preserve the edited timing, choose the delivery format and test the exported subtitle file with the documentary video.
AI subtitle workflow

Subtitle Editor is designed to help you create and review accurate subtitles. Start with video or audio you are authorized to process, create a working draft, and finish with reviewed subtitles. The useful result is not the first automated output; it is the version you have checked against the source.

Quick answer: Use this tool when you need to create and review accurate subtitles. Upload only media you are authorized to process, review the generated draft, and test the final reviewed subtitles in its destination.

How to use Subtitle Editor

  1. Open the right project. Start with video or audio you are authorized to process. Use the clearest available source rather than a compressed copy whenever possible.
  2. Create the working draft. Choose the source language and the relevant tool settings. Let EasySub prepare the first editable version.
  3. Review the difficult parts. Check names, numbers, specialist terms, speaker changes and places where music or overlapping voices reduce clarity.
  4. Deliver and test. Prepare reviewed subtitles, then open it in the player, editor or publishing workflow where viewers will actually use it.

Where this tool fits

Best for

accessible video, localization and creator publishing.

Input

Video or audio you are authorized to process.

Deliverable

Reviewed subtitles.

Accuracy comes from review

Automatic subtitles remove much of the mechanical work, but they cannot know every name, reference or creative intention. Review against the recording, correct timing around cuts, and keep lines short enough to read without hiding important parts of the frame.

Test the final track on desktop and mobile, with sound on and muted. Confirm speaker changes, names, numbers, line breaks and the opening and closing timestamps.

Quality checklist before export

Check What to look for Why it matters
Source match Names, numbers, negatives and specialist terms agree with the recording. Small transcription errors can reverse meaning.
Timing Lines begin with the speaker, leave the screen naturally and do not run through unrelated scene changes. Good timing reduces reading effort.
Readability Line breaks are natural, the text is concise and captions do not cover essential visuals. Viewers need time and space to understand each line.
Final handoff The language, file name, format and destination playback have been tested. A correct draft can still fail in the wrong delivery format.
Responsible use: Upload only content you own or have permission to process. For confidential or sensitive media, review the current privacy terms and your organization’s handling requirements before upload.

Start with a reviewable draft

Open the EasySub workspace, create the first version, then check it against the source before delivery.

Open EasySub workspace →

Tool-specific answers

Questions about Subtitle Editor

Practical details about source files, review and delivery for this workflow.

Subtitle Editor workflow preview
SourceReviewDeliver
What should I use as the source for Subtitle Editor?

Generated or imported subtitles together with the source video or audio used to verify them.

Which subtitle problems should be fixed first?

Correct meaning-changing words, missing dialogue and timing errors first. Then refine punctuation, line breaks, reading speed, speaker labels and placement.

What should I review before finishing Subtitle Editor?

Check names, numbers, negative words, overlaps, gaps, line length and captions that obscure important visuals.

What should I do with the finished result?

Export the checked subtitle file or continue to a captioned-video and translation workflow.

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