SSRT Subtitle Fixer
PRIVATE · BROWSER-LOCAL · FREE

Turn a messy subtitle into a
clean delivery file.

Check SRT or VTT structure, timing, overlaps, readability and formatting. Choose a delivery profile, review exact cue-level findings, apply only selected safe repairs, and export locally.

✓ No upload✓ No account✓ No watermark✓ SRT + VTT
.SRT · .VTT
↑

Drop your subtitle file

Drag & drop an SRT or VTT here, or browse your device.

● Your subtitle content stays on this device.
QUALITY REPORT
—/ 100
Ready to check
SRT · General
General: 42 CPL · 20 CPS · 0.7s–8s · 0ms gap
0Cues
0Errors
0Warnings
0Passed
Total time —Peak CPS —Longest line —
✓
Your subtitle report will appear hereUpload an SRT or VTT to inspect structure, timing and readability.
Private by designParsing and repair happen locally in your browser.
Conservative repairsPreview selected structural changes before they are applied.
Creator-ready QCProfiles for common delivery workflows plus custom rules.
THE WORKFLOW

See the problem. Understand it. Fix it safely.

01

Inspect every cue

Check timestamps, order, overlaps, gaps, empty cues, line length, duration, formatting and reading speed.

02

Choose the standard

Use General, streaming, broadcast or editing-app profiles, or define your own limits.

03

Preview & export

Select safe repairs, choose how overlaps are handled, review the change log, then download the cleaned file and report.

QUALITY CHECKS

Closer to a real QC pass.

Structural faults are separated from readability warnings, with cue-level diagnostics and configurable thresholds.

✓ SRT / WebVTT structure✓ Timestamp syntax & ranges✓ Reversed / zero timing✓ Cue overlaps✓ Minimum-gap checks✓ Numbering gaps / duplicates✓ Empty cues✓ Long lines & 3+ lines✓ Characters per second✓ Short / long duration✓ Replacement characters✓ Unclosed i / b / u tags✓ Missing cue separators✓ Canonical timestamp export
IMPORTANT

A warning is not always a bug.

Professional subtitle tools distinguish mechanical faults from editorial choices. Automatic repair stays conservative: dialogue is not rewritten and reading-speed decisions remain yours.

Safe Renumbering, sorting, timestamp normalization, blank-cue removal, tag balancing and line wrapping.Review CPS, wording, long screen time and overlap strategy. Choose trim, shift, midpoint or report-only handling.
FAQ

Questions, answered.

Does my subtitle get uploaded?

No. The file is read and processed by your browser. Subtitle contents are not sent to a processing server.

Which formats are supported?

SRT and WebVTT are supported for checking and export. VTT keeps its WEBVTT header and timestamp style.

What quality profiles are available?

General, Netflix-style, Broadcast/BBC-style, YouTube, Premiere Pro, DaVinci Resolve, Final Cut Pro, Avid Media Composer and Custom. Profiles are practical presets; always follow the exact delivery specification supplied by your client or platform.

What can the fixer repair?

Selected structural repairs include numbering, sorting, canonical timestamps, empty-cue removal, overlap handling, minimum-duration fixes, safe line wrapping and supported formatting-tag balancing. Dialogue meaning and reading speed are not automatically rewritten.

Can I get a QC report?

Yes. Copy the report to your clipboard or download a plain-text QC/repair report after checking the file.