Caption control that survives export.

Upload a video and let the processing pipeline prepare captions, proxy media, waveform data, and project assets for the editor.

On any plan, automatically detect who's speaking or add and assign speakers manually, then name, color, and style each speaker — with optional names in the video and subtitle files.

Big files upload in chunks and resume from the last completed chunk after a dropped connection instead of starting over.

Bring existing subtitle files into a project when captions were produced elsewhere or supplied by a client.

Keep source, uploaded, and translated caption states available so a project can reopen with the right active language and timing data.

Sources up to 8K are prepared into browser-friendly media, waveform context, and preview assets so editing stays responsive after upload.

Edit subtitle text in focused caption cards with Quill-backed formatting feedback and synced active-card selection.

Review speech rhythm with a waveform timeline, mini navigator, vertical playhead, and synced video scrubbing.

Move subtitle blocks on the timeline and resize their edges to adjust start and end times with visual context.

Use structural subtitle operations when a line needs to be broken apart, joined, inserted, or removed.

Find phrases across captions, jump between matches, replace one match, or replace all while preserving undo history.

Reflow every caption to a maximum word count in one action, or restore the original AI transcript when edits go too far.

Start from built-in style recipes or reuse workspace-saved presets for recurring channels and client looks.

Pick from display fonts, upload your own brand fonts to the workspace library and pin favorites, with Noto fallback for mixed-script captions.

Control font size, foreground color, bold, italic, underline, strikeout, and spacing from the base style.

Tune outline color, outline width, shadow color, and shadow depth so subtitles stay readable over busy video.

Add a background box with adjustable color, width, and opacity when contrast matters.

Place subtitles with 9-point anchors, safe-area margins, horizontal and vertical scale, and global rotation.

Apply subtitle-level font size, color, outline, shadow, background, and text decoration overrides.

Increase or reduce outline and shadow on a specific caption when the background changes behind it.

Give a single caption its own background treatment instead of changing the base style for the whole video.

Use 9-point local anchors plus X/Y offsets to move one caption relative to the inherited safe area.

Rotate an individual subtitle when a scene, edit, or social layout needs a special placement.

Add subtitle-level entrance and exit motion with duration controls for animated caption moments.

Highlight words with classic sweep or instant karaoke timing when word alignment is available.

Use focused word-by-word emphasis, with optional ghost context or future-word context for social clips.

Style the active word with its own color, font size, outline, shadow, background, and decorations.

Wrap captions into social-friendly line groups and style active or inactive lines with inherited or overridden values.

Word-timed effects are limited to supported Latin-language projects, while other lines render normally.

Request translations, keep translated states attached to the project, and review the active language in the same editor.

Preview ASS-style subtitles directly over the video so timing, styling, effects, and placement can be checked before export.

Download SRT, VTT, or TXT files on any plan — ASS downloads are included from Creator up — for platforms, clients, and editing workflows.

Pick the export resolution before you spend minutes, up to the ceiling your plan and source allow — including 4K on higher plans.

Export a captioned MP4 with the generated ASS file burned into the video by backend export workers.

The same generated ASS instructions drive JASSUB/libass preview, ASS downloads, and FFmpeg/libass burned-video export for supported caption treatments.

Projects live inside a workspace so membership, billing, and project access use the same boundary.

Editor changes save back to the project so users can leave, reopen, and continue from the latest caption state.

Upload, translation, and burned export actions check email verification, workspace policy, and available credits before work starts.

Public pricing surfaces included minutes, watermark rules, clean exports, resolution limits, Speaker detection on every plan, cloud processing, and paid extra-minute packs.

Return to interrupted exports with saved status and previous rendered versions — and after an original file expires, the export flow offers a retry from the retained 720p proxy.