Building real things, in public
Notes from DEMHA FUTURE — how we build apps fast with AI, and what we learn.
Compare Two Lists — free online tool
Compare two lists online and instantly see what's unique to each and what they share — free, right in your browser, nothing uploaded.
Compound Interest Calculator — free online
See how your savings grow with compound interest and regular deposits, free and online — it all runs right in your browser, nothing uploaded.
Consulting Agreement Generator — free online
Make a clear consulting contract online for free. Fill the form and download it right in your browser, with nothing uploaded.
Content License Generator — free online
Make a clear license for your photo, design, or content right in your browser. Free, online, and nothing you type is uploaded.
Contract Redline — compare contract changes free online
Spot every change between two contract versions free online, right in your browser. Additions in green, deletions in red, side by side, nothing uploaded.
Contract Termination Letter — free online
Write a ready-to-send contract termination or cancellation letter free online, right in your browser. Nothing is uploaded.
Contractor Agreement Generator — free online
Make an independent contractor agreement for free, online, right in your browser. Fill in the details and nothing gets uploaded.
Contrast Checker — free online (WCAG AA/AAA)
Check if your text and background colors pass WCAG AA/AAA contrast, free and online, right in your browser with nothing uploaded.
Contribution Margin Calculator — free online
Work out contribution margin per unit, the ratio and the total from your price and variable cost — free and online, right in your browser.
Conversion Rate Calculator — free online
Work out your store's conversion rate, revenue and revenue per session free online, right in your browser with nothing uploaded.
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