Create · Checker · Phase 2

SRT validator and repair tool

Check subtitle structure and repair numbering, spacing, and timestamp arrows locally. Change the inputs, review the method, and use the output as a transparent starting point.

How Free Creator Toolkit estimates results
Your inputs

Check subtitle structure

Inputs stay in this browser. Saving a scenario is optional and local to this device.

Paste subtitles or load a local file. The file never leaves this browser.

No file selected
Checked result

Repaired SRT

1
00:00:01,000 --> 00:00:04,000
Welcome to this creator workflow.

2
00:00:05,000 --> 00:00:08,500
Today we will turn an idea into a clear plan.

2 cues normalized and renumbered.

Review sources and method

Share links include only numbers and choices. Local saves remain in this browser until you delete them; file and long-text content is excluded.

Saved on this device0 of 6 saved

This tool uses private long-form input, so no scenario is stored.

Formula or method

Normalize cue numbering, timestamp arrows, blank lines, and timestamp ordering

Assumptions

  • Repairs cover common structural problems and do not rewrite caption wording.
  • Review the output in your editor before publishing.

Sources and verification

Use the result well

How to use the srt validator

Parse an SRT file locally, normalize cue numbering and timestamp arrows, and return a structurally consistent file. Repairs are deterministic and preserve cue wording; they do not proofread language, judge timing quality, or certify platform acceptance.

Review what the repair changed

Load or paste a copy of the subtitle file, then compare the repaired output with the original before replacing anything. The tool renumbers parsed cues, normalizes timestamps, restores cue separation, and keeps arrows that belong to spoken text rather than treating every arrow as timing syntax.

Malformed timestamps or blocks with no recognizable cue range may be omitted because they cannot be repaired safely. Keep the source file until the corrected version has been reviewed in a player against the final video.

Keep local processing and timing limits clear

Subtitle text is read and processed in the browser; the tool does not upload the selected file. File and character limits protect the page from unbounded local work. Avoid loading confidential transcripts on a shared device and delete downloaded copies according to the project policy.

A structurally valid SRT can still be hard to read or mistimed. Follow the repair with the reading-speed checker and a manual playback review for line breaks, speaker changes, sound descriptions, synchronization, and meaning.

Common questions

Questions about this tool

Will the repair change subtitle wording?

It is designed to preserve cue text while normalizing structure. Always compare the output with the original because severely malformed blocks may not be recoverable.

Are subtitle files uploaded to Free Creator Toolkit?

No. The current tool reads and processes the file in your browser. The page still applies local file-size and character limits.

Does a repaired file guarantee YouTube acceptance?

No. It improves basic SRT structure. Encoding, unsupported styling, language metadata, timing, and platform-specific validation may still require review.