Manual subtitle utilities

Edit basic SRT and WebVTT captions, convert timing and check cues without AI.

These are manual text utilities; they do not transcribe or translate speech. Embedded image-based subtitle tracks and unsupported styling cannot be extracted as editable text here.

Manual Subtitle Editor →

Create or edit timed SRT captions and preview their timing over a local video.

Convert SRT to WebVTT →

Convert simple SRT text cues into browser-friendly WebVTT format.

Convert WebVTT to SRT →

Convert basic WEBVTT cues into SRT subtitles without uploads.

Shift Subtitle Timing →

Move every subtitle cue forward or backward by a precise offset.

Split Subtitles at Time →

Divide SRT or VTT captions into two downloadable SRT tracks.

Merge Subtitle Files →

Combine two subtitle files and sort their captions by start time.

Normalize Subtitle Cues →

Renumber and tidy whitespace in simple SRT and VTT captions.

Extract Text from Subtitles →

Remove timing lines to obtain plain text from existing captions.

Rescale Subtitle Timeline →

Stretch or shrink an existing subtitle timeline using a chosen factor.

Find & Replace Caption Text →

Replace exact words or phrases across all subtitle cues locally.

Check Subtitle Timing →

Find overlapping, out-of-order and unusually short cues.

Subtitles to Chapter Timestamps →

Create an editable chapter timestamp outline from existing cue starts.

Trim Subtitle Timeline →

Keep captions in a time interval and reset their timing to the new clip start.

Practical starting points

Start with a short known-good sample, choose a supported output, and verify playback before sharing. Files are processed on your device in the current release; unsupported operations do not silently upload.

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