Run Add Subtitles to Video on a whole folder of videos
Drop a folder, get a folder back. The bulk workflow with Add Subtitles to Video when you have dozens of videos to process the same way.
Doing one video at a time is fine. Doing 50 of them is a different problem entirely — and exactly where most browser tools fall apart. Add Subtitles to Video handles batches by design, processing them through the same in-browser pipeline as single files without re-uploading anything.
Launch the tool: Add Subtitles to Video — Runs entirely on your device using open web standards.
The batch workflow
- Open Add Subtitles to Video.
- Select all the videos at once. Drag a whole folder onto the drop area, or use Ctrl/Cmd+A in the file picker.
- Set the options once — they apply to every video in the batch.
- Start the run. Add Subtitles to Video processes them sequentially; progress shows file-by-file completion.
- Download — usually a single ZIP with every result inside, named after the original videos.
How long does a batch take?
Roughly the same time as one video, multiplied by the count. A small video processes in well under a second; 50 of them take under a minute. Larger videos (video, scanned PDFs) scale linearly — budget a few seconds per file. Your CPU is the limit, not the network, because nothing is being uploaded.
Memory and browser limits
Add Subtitles to Video stages the work so the browser only holds a few videos in memory at once, not all 50. This means you can safely batch hundreds of files on a normal laptop — the limit is your patience, not the browser's RAM.
Use the tool
Everything happens locally in your browser — your file never leaves your device.
When batching saves real time
Examples where batch processing pays off:
- Wedding photo cleanup — a thousand-image album, processed at once, downloaded as a single ZIP.
- Monthly invoice archive — every PDF for a year, compressed and stripped of metadata in one pass.
- Bulk format conversion — every HEIC photo from a trip, converted to JPG for sharing.
- Document scan run — a folder of scanner output, all run through the same cleanup, all named consistently.
Frequently asked questions
Can I cancel a batch midway?
Yes — close the tab. Add Subtitles to Video doesn't keep anything; files already processed are saved in your downloads, unfinished ones are simply lost.
What if one file in the batch fails?
Add Subtitles to Video skips the failed file, continues with the rest, and reports the error at the end. You can re-run just the failed one separately.
Will all files in the batch get the same settings?
Yes — that's the whole point of batching. If you need different settings per file, run them in separate batches.
Does the ZIP download work on mobile?
Yes — both iOS and Android handle ZIPs from browser downloads. You can extract them with the built-in file manager.
Related guides
- How to add subtitles to a video in 2026 — what changed and what didn't
- Using Add Subtitles to Video when collaborating with a team
- Frequently asked questions about Add Subtitles to Video
- How to add subtitles to 50+ videos at once
- Run Remove PDF Password on a whole folder of passwords
- Run Rotate PDF on a whole folder of PDFs
Ready to try it?
Use the tool: Add Subtitles to Video. No upload, no signup, no daily limit.
Last reviewed May 2026. File-size limits, portal requirements, and software defaults change over time — always verify with the destination platform before uploading time-sensitive documents. References to third-party services and products are for descriptive purposes only and do not imply any partnership or endorsement.