A dev wanted to let users upload large data files into their Bubble app.
Sounds simple… until reality hits.
Every time users uploaded a big CSV or JSON file, the app slowed down, workflows became heavy, and processing the data required complicated backend logic.
The developer didn’t actually need the whole file —
they only needed specific fields from thousands of rows.
So instead of sending everything to the backend, we built a smarter solution:
A plugin that lets Bubble apps upload, stream, and filter large files directly in the browser.
Now users can:
• Upload JSON, CSV, TXT files
• Extract only the fields they need
• Filter large datasets instantly
• Process files without freezing the app
What used to require complex backend workflows now takes two simple actions.
Sometimes the best solution isn’t more infrastructure —
it’s processing data smarter.
What the plugin does
File → Filter → Return only what you need
```
User uploads file
↓
Plugin reads the file
↓
Plugin filters data
↓
Plugin returns only selected fields
```
-–
Example
**Input file (CSV)**
```
name,age,country
John,25,USA
Alice,30,UK
Mark,28,USA
```
Developer chooses:
```
Return field → name
Filter → country = USA
```
-–
Output
```
John
Mark
```
-–
Another Example (JSON)
Input
```
[
{ “name”:“John”,“age”:25 },
{ “name”:“Alice”,“age”:30 },
{ “name”:“Mark”,“age”:28 }
]
```
Developer chooses:
```
Return → name
```
-–
Output
```
John
Alice
Mark
```
-–
In one sentence
```
Large file → Extract fields → Return clean data
```
