3 tools live · more shipping regularly
Free browser tools for sellers and builders
Convert images, calculate marketplace fees, generate invoices — free, private, right in your browser.
The family
Tools you can use right now
HEIC Converter
Image conversionConvert iPhone HEIC photos to JPG, PNG or WebP right in your browser.
- HEIC → JPG / PNG / WebP
- Unlimited batches, 0 uploads
- No install — works on Windows 10/11
Amazon Fee Calculator
Selling & financeSee your true profit per SKU — every Amazon fee itemized and sourced.
- US · UK · India marketplaces
- FBA vs FBM side-by-side
- Official rates, linked & dated
Invoice Generator
Selling & financeCreate polished PDF invoices in seconds and download them instantly.
- PDF download, no sign-up
- UK VAT & multi-currency
- Freelancer presets built-in
More tools in the works
Got an idea? Request one
Coverage
What the family covers
Image conversion
Everything runs locally in your browser — batch-friendly, watermark-free, with no daily caps.
Selling & finance
Built for marketplace sellers and freelancers who want the real numbers, not estimates buried behind a login.
Principles
One family, one set of rules
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Privacy by architecture
Every tool in the family processes your files and numbers locally in your browser. There is no upload step in the code path at all — your data physically cannot leave your device.
Why us
Built to be trusted, not just used
Privacy by architecture
Not a promise in a policy — an implementation fact. Tools process files and numbers inside your browser; there is no upload code path to trust or distrust.
No account, ever
Open the page and use the tool. No email walls, no trials that expire, no "create an account to download".
Honest about limits
When a number is an estimate, it is labeled as one — with the official source linked and dated. You always know what you are looking at.
Everything on shopifyai.xyz is free to use
No trials, no paywalls, no hidden limits — and none of the tools have "premium" versions. If that ever changes, it will be announced here first, in plain words.
Request a tool
Missing something? Tell us what to build
The family grows based on what people actually need. Describe the tool you wish existed — the best requests become the next pages on this site.