SUBTITLE BATCH DESK / TRY BEFORE YOU BUY

One batch.
Fewer repetitive exports.

Convert subtitle formats and shift timings together. Try three files free, then use the offline desktop edition for larger batches.

Choose files or try the sample batch.

Preview the first converted file

OFFLINE DESKTOP EDITION

Up to 100 subtitle files. One ZIP.

Same conversion workflow, larger batches, and local use without opening a website.

Buy desktop edition · US$9

One-time purchase. Final price and applicable taxes are shown at checkout. Payment and delivery are handled by Gumroad.

Free preview vs. desktop edition

Feature	Free preview	Desktop
Files per batch	3	100
SRT / VTT + timing shift	Yes	Yes
ZIP + CSV report	Yes	Yes
Offline HTML file	No	Yes
Recurring fee	None	None

A batch, not a new upload routine.

Select SRT and WebVTT files together. Choose one output format and one timing shift for the batch. Download individual results or a single ZIP containing the converted files and a CSV report. Invalid files are identified individually; valid files still export.

What you receive

The desktop edition is a self-contained HTML file. Download it, extract the ZIP and open Subtitle-Batch-Desk.html in a current desktop Chrome, Edge, Firefox or Safari browser. No installation, account, network connection or API key is required to process files.

Know the limits before buying.

This changes file format and timing, not language. It does not transcribe audio, translate captions, extract video or edit text. Files must be UTF-8 and contain basic cues. WebVTT styles, notes, regions and positioning settings are rejected. Cue markup is retained but may render differently in your editor.

Negative shifts before zero are rejected. One shift applies to every file. File names receive numeric prefixes to avoid collisions. Keep your originals and check exported captions in your editor.

The offline edition supports up to 100 files per batch, 2 MB per file and 20 MB total. Desktop browsers are the supported workflow; local HTML operation on phones is not guaranteed. No cloud sync, DRM or subscription is included.