Voice2Sub Free Tools

Free Subtitle & Media Tools

Pick a task and work directly with a local file — no account and no upload workflow.

● Local processingNo accountYour files stay on your device

Subtitle Tools

5 tools
Subtitle ConverterSubtitle tool

Convert formats without one-off regex replacements.

Subtitle FixerSubtitle tool

Find and repair deterministic subtitle problems.

Subtitle SplitterSubtitle tool

Break long cues into readable segments.

Time ShifterSubtitle tool

Offset, sync and correct timing drift.

Reading Speed CheckerSubtitle tool

Audit CPS, lines, duration and overlaps.

Media Tools

3 tools
Video to AudioMedia tool

Choose an audio track, copy or transcode it.

Extract SubtitlesMedia tool

Inspect and extract embedded text tracks.

Media InfoMedia tool

Inspect codecs, streams and container metadata.

Media tools load the Voice2Sub-managed WebAssembly engine only after you select media; browsing this directory and using subtitle tools stays lightweight.

Subtitle utilities without uploads

Convert, validate, split, synchronize and analyze subtitle files directly in browser JavaScript. Your subtitle text stays on the device while you work.

Local media inspection and extraction

Inspect streams, extract embedded text subtitles, or create an audio file with a lazy-loaded FFmpeg WebAssembly engine. Selected media remains local to the browser.

Useful formats, clear limits

Subtitle tools cover SRT, VTT, ASS/SSA and common interchange formats. Media tools inspect the selected file first and explain unsupported codecs instead of pretending every format works everywhere.