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Show HN: A fast, privacy-first image converter that runs in browser

imageconverter.dev

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Show HN: A fast, privacy-first image converter that runs in browser

#1

Post by wainguo »

Hey HN

I built ImageConverter.dev because I got tired of “free” image converter sites that force uploads, or throttle conversions.

So I made a tool that runs 100% client-side — meaning your images never leave your device. It’s built for speed, simplicity, and privacy.

What it does

Convert images between JPG, PNG, WebP

Works offline once loaded (PWA support)

How it works

It uses the Canvas API and WebAssembly to handle conversions directly in the browser. There’s no upload, no tracking, no server costs, and it’s fast even on mid-range devices.

Why I built it

I wanted an instant, no-ads, privacy-safe way to handle images for my personal projects — something lightweight enough to replace desktop tools.

Try it

https://imageconverter.dev

Would love feedback from the community — especially on:

Performance on different browsers/devices

Thanks for reading!

Show HN: A fast, privacy-first image converter that runs in browser
imageconverter.dev

Re: Show HN: A fast, privacy-first image converter that runs in browser

#2

Post by martypitt »

Congrats on shipping.

However, the "Privacy First" and "No Ads" claim gets eroded pretty quickly by cookies, and requests to trackers like n.clarity.ms, google-analytics and adtrafficquality.google.

Note - I don't actually have an issue with any of those things - if you wanna monetize this service through analytics and ads, that's up to you. But it's at odds with your privacy first claims.

Re: Show HN: A fast, privacy-first image converter that runs in browser

#4

Post by throwanem »

no_no_no_no wrote: post #3

upload... no uploads...

The FileReader web API enables you to make local files available to content running in the browser. This entails a file picker and, depending on the verbiage in your browser UI, that may talk about "upload." That doesn't mean anything is being sent anywhere. See MDN: https://developer.mozilla.org/en-US/docs/Web/API/FileReader

(Or that nothing is; I have not audited this code. But I vouched the parent comment to point out that browsers do offer this capability, and there's nothing facially suspicious in claiming to use it.)

Re: Show HN: A fast, privacy-first image converter that runs in browser

#5

Post by lukaslukas »

Welcome to imageconverter.dev imageconverter.dev asks for your consent to use your personal data to:

Personalised advertising and content, advertising and content measurement, audience research and services development Store and/or access information on a device ...

WTF? Privacy first?

Re: Show HN: A fast, privacy-first image converter that runs in browser

#8

Post by wainguo »

lukaslukas wrote: post #5

Welcome to imageconverter.dev imageconverter.dev asks for your consent to use your personal data to: Personalised advertising and content, advertising and content measurement, audience research and services development Store and/or access information on a device ... WTF? Privacy first?

Oh, The privacy policies is a template, Here privacy is mainly refer to the images data never upload to any server.
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