How to generate 50 files at once
The fast way to bulk-generate files when you need a whole batch. Browser-based, free, no signup, runs entirely on your device.
Doing one file at a time is fine. Doing 50 of them is a different problem entirely — and exactly where most browser tools fall apart. Robots.txt Generator handles batches by design, processing them through the same in-browser pipeline as single files without re-uploading anything.
Try it now: Robots.txt Generator — Everything happens locally in your browser — your file never leaves your device.
The batch workflow
- Open Robots.txt Generator.
- Select all the files 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 file in the batch.
- Start the run. Robots.txt Generator processes them sequentially; progress shows file-by-file completion.
- Download — usually a single ZIP with every result inside, named after the original files.
How long does a batch take?
Roughly the same time as one file, multiplied by the count. A small file processes in well under a second; 50 of them take under a minute. Larger files (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
Robots.txt Generator stages the work so the browser only holds a few files 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. Robots.txt Generator doesn't keep anything; files already processed are saved in your downloads, unfinished ones are simply lost.
Is there a maximum batch size?
Not a hard one — we've seen users process 500+ files in a single session. The practical limit is your computer's patience.
What if one file in the batch fails?
Robots.txt Generator skips the failed file, continues with the rest, and reports the error at the end. You can re-run just the failed one separately.
Are batches faster than processing files one at a time?
Slightly faster end-to-end because there's no re-initialisation between files. But the big win is your time, not CPU time.
Related guides
- Five file examples generated with Robots.txt Generator
- Robots.txt Generator on iPhone — generate a file in mobile Safari
- How to generate a file in 30 seconds with Robots.txt Generator
- Best practices when generating a file in 2026
- How to generate 50 identifiers at once
- How to generate 50 meta tags at once
Ready to try it?
Try it now: Robots.txt Generator. Everything happens locally in your browser — your file never leaves your device.
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.