Rescreen / Free tools / SRT subtitle editor
SRT subtitle editor
Correct subtitle text and timing while checking it against your video.
- 1Open subtitles
- 2Edit text & timing
- 3Download
Open your subtitles
Edit your subtitles
| Start | End | Subtitle text | Actions |
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How to use the srt subtitle editor
Open subtitles
Paste SRT or WebVTT, or choose a caption file.
Correct the subtitles
Edit words and timestamps, replace a repeated name, or split and merge lines.
Check synchronization
Choose the matching local video and play from a subtitle to compare speech and captions.
Export the result
Resolve invalid timings, choose SRT or VTT, and download the revised subtitle file.
Edit subtitles without retranscribing
A subtitle file contains small blocks called cues. Each cue has a start time, an end time and one or more text lines. Editing those blocks is useful when an automatic transcript has the right timing but spells a product name incorrectly, or when a finished recording needs a small timing correction. You do not need to run speech recognition again to make these changes.
Open the exact subtitle file that belongs to your final video. If you trimmed or rearranged the recording after generating captions, a global timing shift may not be enough. Check a cue near the beginning, middle and end. A consistent delay can usually be corrected with an offset; a delay that grows or changes after a cut needs individual timing edits or new captions.
Shift subtitle timing safely
Enter an offset in seconds to move every cue by the same amount. A positive value makes captions appear later; a negative value makes them appear earlier. Fractional seconds are accepted, so an offset of 0.250 moves the file by a quarter of a second. The tool refuses an offset that would put a cue before the beginning of the video and keeps the existing timings unchanged.
Changing the first cue by hand is different from applying a global offset. A manual edit affects only that cue, while the offset moves all loaded cues, including those on other pages of the table. Watch for overlapping cues after making individual changes. Overlap can be intentional for simultaneous speakers, so it is flagged for review rather than automatically removed.
Split, merge and correct technical names
Use Split when a cue contains too much text to read comfortably. The initial split divides the time interval and its words in half; listen to the recording and adjust the new boundary to the actual speech. Merge next combines adjacent cue text and extends the ending time to cover both. It does not analyze whether the two phrases belong together, so review readability after merging.
Find and replace matches exact text, which is useful for a consistently misspelled application or command. Check capitalization and punctuation before replacing all matches. The original imported cues remain available through Restore original subtitles, and the source text stays above the table. Keep a separate copy of the source file if you want to return to it after closing the page.
Choose SRT or WebVTT for the destination
SRT is widely used for uploading captions to video services. YouTube's basic SRT support expects plain UTF-8 and does not recognize styling markup. WebVTT is the format used by the caption track of an HTML video player and can contain placement information. This editor exports UTF-8 in either format and lists metadata or formatting that cannot be carried into the result.
Caption preview focuses on spoken text and timing. It does not reproduce every platform's fonts, line wrapping or advanced caption layout. Style blocks, regions and comments from a complex WebVTT file may not survive editing; review the notices before downloading. If you only need to change between SRT and VTT without editing cues, the dedicated converter offers a simpler path. To put the same subtitles into another language, use the subtitle translator.
Official guidance
YouTube supported caption formats. Checked 28 October 2026.
Match subtitles to the finished tutorial
Use the final video when checking subtitle timing. Replacing a section or trimming the start after you edit captions can shift the words away from the action they describe. For your next software walkthrough, record the screen and narration with Rescreen, finish the edit, then generate and review subtitles from that version. Keep product names and menu labels consistent with what appears on screen.
Frequently asked questions
Can I fix a file with broken timestamps?
The editor refuses an import that contains invalid or untimed blocks so it does not silently discard captions. Correct the source text above the table, then open it again. Once loaded, invalid edits are highlighted and block export.
Why are only fifty cues shown?
The table pages through long files to stay responsive. Offsets, replacements, validation and exports still apply to the entire loaded file, up to ten thousand cues.
Does this burn subtitles into the video?
No. It exports a separate subtitle file. The local video is used for timing review and is not changed or re-encoded.
Are the video or subtitles stored online?
No. They are read by the page locally. Clearing or closing the tool releases the session; the original source files remain on your device. Download your edited subtitles before leaving.
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