Bulk Burn

Bulk video auto
subtitle burner.

Upload a folder of raw videos and Pxlify transcribes each, diarizes speakers, and burns the captions in parallel on the cloud render pool. The output is a download of finished, captioned MP4s — no manual queue, no per-file babysitting.

  • Free up to 60 min
  • ·
  • 100% word accuracy
  • ·
  • Speaker labels included
  • ·
  • 99+ languages
  • ·
Audio / Video File

Drag & Drop

MP3, MP4, M4A, MOV, AAC, WAV, OGG, OPUS, MPEG, WMA, WMV

— OR —
Or see interactive demo below
Free tier — no signup to try Speaker diarization included SRT, VTT, ASS, JSON, TXT, DOCX exports
Word accuracy100%State-of-the-art ASR benchmark
Free transcript pool60 minNo credit card · cancel anytime
Languages supported99+Auto-detect + manual select

Bulk Burn Pipeline

Watch the exact pipeline that runs when you upload media to Pxlify.

pxlify_ai_engine_processor
Active Simulation
1

Upload & Extract

explainer_video.mp4

2

Whisper Speech AI

Converting audio to words...

3

Studio Transcripts

Synced SRT & VTT Exports

explainer_video.mp4

0%

Extracting high fidelity audio streams...

Engineered for high-volume caption burning

Parallel render workers. Resumable on failure. Predictable per-minute billing.

Timed Highlights

Aligns audio signals with precise segment timestamps, ensuring transcripts fit video timelines perfectly.

Whisper Speech Model

Leverages neural transcription frameworks to capture speech patterns, technical terms, and complex vocabulary.

Multi-Format Exports

Export to SRT, WebVTT, Advanced SSA (.ass), JSON, Word (.docx), or a clean speaker-script TXT — ready for YouTube, Netflix-style subbing pipelines, and short-form video editors alike.

Interactive Playback

Click any word or timestamp in the transcript to jump the video directly to that spoken segment.

Privacy Secured

Local preprocessing allows you to play and test files locally in the browser sandbox before uploads are triggered.

Inline Studio Editor

Refine and update text segments directly on the dashboard with instantaneous state synchronization.

Bulk-burn captions in 3 steps

Upload batch → confirm style → download captioned MP4s.

01

Upload your video

Drag in a local file (.mp4, .webm, .mov) or pick an existing recording from your library.

02

Auto-generate timestamps

Pxlify analyzes the audio, splits it into speech segments, and timestamps every line automatically.

03

Refine & export

Search segments, edit lines inline, sync playback timings, then export to SRT, VTT, ASS, JSON, DOCX, or speaker-script TXT.

Bulk auto-subtitle burner FAQs

How many videos can I queue at once?+

There's no hard cap. Agencies routinely queue hundreds of clips per batch; throughput scales with the cloud worker pool.

What happens if one file fails halfway?+

Failed renders are auto-retried, and the batch continues. You get a per-file status report at the end.

Can each video have its own caption style?+

Yes — apply a default style to the batch, or override per-file before kicking off the render.

Is the output suitable for client delivery?+

Yes. H.264 + AAC MP4s at original bitrate, no Pxlify watermark on paid tiers.