🚀 How we processed 100,000+ lines in Bubble in under 1 minute (no backend, no crashes)

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1

Most Bubble apps struggle the moment you try to handle large files.

You hit memory limits, timeouts, or end up forcing everything into the database.

So we built Large File Stream Processor.

Use case:

A client had massive log files and only needed the lines containing keywords like ERROR, FAIL, or WARN.

Instead of uploading the full file, Large File Stream Processor:

Streams the file line by line in the browser

Matches only the words you define

Discards everything else

Uploads the filtered result to the Bubble CDN

Returns a clean file URL plus live stats (progress, lines processed, lines matched)

:backhand_index_pointing_right: Result: 100,000+ lines processed in seconds, not minutes

:backhand_index_pointing_right: No FileUploader

:backhand_index_pointing_right: No backend workflows

:backhand_index_pointing_right: No memory crashes

Lesson:

In Bubble, performance isn’t about adding more backend logic — it’s about processing smarter before data ever hits your app.

If you’re dealing with logs, CSVs, audits, or large text imports, Large File Stream Processor changes what’s possible.

Demo

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@SAIDER1 I like the idea. How does WU perform for 100,000 lines?

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We benchmarked it at ~100,000 lines in ~5–15 seconds with a 1 MB chunk size.

It streams the file client-side, filters only matching lines, and never loads the full file into memory, so performance scales linearly.

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