Home/Pricing
Free today, and free tomorrow
All 443 tools cost nothing, need no account and have no limits. This page is about what is planned next, and about putting in writing that none of it takes anything away.
Free
$0 / month
Everything on the site today, for everyone, with no account.
Start using it- All 317 tools
- No account and no email address
- No usage limits
- Nothing you enter leaves your browser
- Works on phone, tablet and desktop
- Every converter shows its working
Pro
$4 / month
Planned, for the heavier tools being built now. Nothing that is free today moves here.
Tell me when it is ready- Everything in Free
- Batch conversion — paste or upload a column, convert it all
- Saved presets and unit sets
- Export results to CSV, PDF or a shareable link
- Arbitrary-precision mode for engineering work
- Embed any tool on your own site
- History synced across your devices
Team
$12 / month
Planned, for teams that need shared settings and a record of what was calculated.
Register interest- Everything in Pro
- Shared presets across a team
- A log of conversions for audit
- Single sign-on
- Priority support
The promise, in plain terms
Sites that start free and later fence off what people came for are a familiar story, and it is worth saying clearly that it is not the plan here. The converters, the hardware testers, the counters and the questionnaires are free, and they are not moving.
If a paid tier happens, it covers work that does not exist yet: batch processing a spreadsheet of values, exporting a result, embedding a tool in someone else's site, keeping a synced history. Those need building, and some of them need a server, which is the actual reason they would cost anything.
Until then, the honest position is that there is nothing to sell you.
Questions about pricing
Is anything on the site paid right now?
No. Every one of the 317 tools is free today, with no account and no limits. Nothing on this page is for sale yet.
Will the free tools ever move behind a paywall?
No. Everything that is free today stays free. A paid tier, if it happens, will only cover new tools built specifically for it — batch processing, exports, embedding and similar. Taking away something people already rely on would be a poor way to start charging for anything.
Will I need an account for the free tools?
No. The free tools work with no account, and that is not going to change. An account would only ever be needed for the paid features that genuinely require one, such as syncing across devices.
When will the paid tiers launch?
There is no date. The tools are still being built, and this page exists to be straight about what is planned rather than to take money for something that does not exist.
Are the prices shown final?
No. They are an indication of the intended range, not a commitment. Anyone who registers interest will be told the real figures before anything is charged.
How do I get told when it launches?
Send a message through the contact page. There is no mailing list signup on the site, because that would mean collecting email addresses on a site that currently collects nothing.