Subtitle format

VTT Sample Files

WebVTT (.vtt) subtitle files support web-native caption tracks. Use sample VTT files to validate browser caption display and parser behavior for cue timing and styling hints.

4 files All to 1MB SHA256 verified Manifest included
Quick facts
CategorySubtitle
Total Files4
Extension.vtt
MIMEtext/vtt
ManifestJSON
Request Related Coverage
Files first

Start with one representative file.

Starter file

vtt_sample_file_1MB.vtt · 1.0 MB

Download
Filename Size MIME Download
.vtt Starter SHA256 ad0510b5d921...
1.0 MB text/vtt Download
.vtt Realistic SHA256 5478d4a5518a...
200.0 KB text/vtt Download
.vtt SHA256 a957f7254d6f...
500.0 KB text/vtt Download
.vtt SHA256 2f1c3265f816...
50.0 KB text/vtt Download
Use cases

Pick the next task, not just the next file.

Use the file table first, then branch into compare or FAQ only if the task needs more context.

Compare and decide

Keep the next decision one step away.

SRT vs VTT

Compare classic SRT subtitle files with WebVTT for web players.

Open Comparison
FAQ and reference

Keep the operational details quiet.

Checksum Verification

Use checksums to confirm file integrity after download.

shasum -a 256 your_file_name_here
# Compare output with SHA256 values listed above.
Where is the machine-readable manifest?

Use the manifest when you need stable names, SHA256 values, and URLs for automation.

Validation Methodology
  • Validate extension and MIME detection before processing.
  • Benchmark performance with small and larger files.
  • Test malformed-input handling and error messaging.