CueForge Open the app

00:00:00,000 · for subtitlers & captioners

Subtitle work that
never leaves your
machine.

Convert, repair, quality-check and re-sync subtitles in the browser — with the styling, positioning and line breaks intact. No uploads. No accounts to just look. No frame ever touches a server.

Open the studio — free See broadcast formats

Free for SRT · VTT · SBV · ASS. Pro adds SCC · STL · TTML · iTT, batch & auto-resync.

00:01:12,400 → 00:01:15,900

«مرحبًا بكم»

— and welcome back.

ASS → TTML ✓ style preserved
RTL + colour + italics, losslessly.

Your subtitle files never leave your device.

Every parse, conversion, QC pass and re-sync runs locally in your browser — including auto-resync, which decodes your audio on-device. Perfect for embargoed episodes, NDAs, and confidential cuts. To be precise: a Pro licence check and cookieless page-view analytics are the only network calls, and they never see your content.

01

Built for the work that pays.

Style-preserving conversion

Colour, positioning, italics and line breaks survive the round-trip — with a live loss matrix that shows exactly what each target keeps before you convert.

Broadcast & OTT formats

SCC (CEA-608), EBU-STL, TTML/IMSC and Apple iTT — import and export the formats delivery platforms actually require.

Arabic & RTL, bulletproof

Right-to-left text, bidi and shaping handled correctly end-to-end, with QC rules written for Arabic — not bolted on.

QC & one-click repair

Reading speed, durations, gaps, overlaps and line length — flagged against a preset and auto-fixed without introducing new issues.

Sync that holds

Shift and linear retime free; frame-rate conversion, drift correction and audio auto-resync for when an ASR transcript drifts against the cut.

Batch, off the main thread

Convert, retime and QC a whole folder at once in a Web Worker, then download the results as a ZIP. Your UI never freezes.

02

Every format, both directions.

Free

  • SRT
  • WebVTT
  • SBV
  • ASS / SSA

Pro broadcast

  • SCC
  • EBU-STL
  • TTML / IMSC
  • Apple iTT
03

One plan. No per-seat games.

Free

$0

  • SRT · VTT · SBV · ASS, both ways
  • Full style + loss matrix
  • QC, repair & shift / retime
  • 100% local — no account needed
Open the studio

Pro annual

$59 / year

  • Everything in Free, plus —
  • SCC · STL · TTML · iTT import & export
  • Frame-rate, drift & audio auto-resync
  • Batch processing → ZIP
Get Pro

A licence key, activated locally. Cancel anytime.

Open it. Drop a file. Watch nothing upload.

Open CueForge