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ToolkitLoop
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ToolkitLoop

30 free online tools that run 100% in your browser

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ToolkitLoop is a free toolkit of 30 online tools that run entirely in your browser. No sign-ups, no uploads — your files and data never leave your device.


It covers everyday needs: tip, percentage, mortgage and calorie calculators; unit, currency and decimal-to-fraction converters; QR code generator & scanner; barcode generator; image compressor & resizer; and developer utilities like JSON formatter/validator, Markdown viewer, and an M3U8 player.


Private by design, free forever, no account wall.


Example Image
Example Image
Example Image
Example Image
Example Image

Features

- 30 free online tools, no sign-up or install required

- Runs 100% in your browser — files and data never leave your device

- Calculators, converters, QR & barcode tools, image tools, JSON/Markdown dev utilities

- Free forever, private by design


Use Cases

- Calculate tips, split bills, and estimate mortgage payments instantly

- Compress images to an exact file size (e.g. 100KB) before uploading

- Generate permanent QR codes and barcodes locally, no account needed

- Validate and format JSON without sending data to a server


Comments

Running everything locally in the browser is a strong privacy angle. How does the image compressor hit an exact target size like 100KB - iterative quality steps, or resizing as well?

The local JSON formatter and the M3U8 player sit next to tip and mortgage calculators, which is an unusual mix. Are the dev utilities a separate app behind the same homepage, or one codebase? Also, does the QR scanner use the device camera entirely client-side so the image never leaves the browser?

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Founder of Qovia

Keeping the image compressor and JSON formatter entirely in the browser is the right call if people are resizing files they do not want uploaded. Hitting an exact target size like 100KB is the feature I would actually use before a form upload. Does that path only lower JPEG quality, or does it also resize dimensions when quality alone cannot reach the target?

Love that everything runs in the browser, so no files get uploaded anywhere. That's a big plus for privacy. Congrats on the launch!

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Fullstack AI Engineer who loves building...

Cool stuff. Maybe have this as a native software, user can just open the software and use these tools from there. Having this opened on browser will get lost in dozens of tabs.

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Founder of ToolkitLoop
Makers
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Founder of ToolkitLoop

Comments

Running everything locally in the browser is a strong privacy angle. How does the image compressor hit an exact target size like 100KB - iterative quality steps, or resizing as well?

The local JSON formatter and the M3U8 player sit next to tip and mortgage calculators, which is an unusual mix. Are the dev utilities a separate app behind the same homepage, or one codebase? Also, does the QR scanner use the device camera entirely client-side so the image never leaves the browser?

custom-img
Founder of Qovia

Keeping the image compressor and JSON formatter entirely in the browser is the right call if people are resizing files they do not want uploaded. Hitting an exact target size like 100KB is the feature I would actually use before a form upload. Does that path only lower JPEG quality, or does it also resize dimensions when quality alone cannot reach the target?

Love that everything runs in the browser, so no files get uploaded anywhere. That's a big plus for privacy. Congrats on the launch!

custom-img
Fullstack AI Engineer who loves building...

Cool stuff. Maybe have this as a native software, user can just open the software and use these tools from there. Having this opened on browser will get lost in dozens of tabs.

Premium Products