Building real things, in public
Notes from DEMHA FUTURE — how we build apps fast with AI, and what we learn.
Invoice Payment Terms Generator — free online
Write clear payment terms for any invoice or contract, free and online, right in your browser with nothing uploaded.
IP Assignment Agreement Generator — free online
Make a work-for-hire IP assignment agreement free online, right in your browser. Fill in the details and download it — nothing is uploaded.
Ireland VAT Calculator — free online
Add or remove Irish VAT (23%, 13.5% or 9%) in euros and see net, VAT and gross — free online, right in your browser, nothing uploaded.
ISBN Barcode Generator — free online
Turn an ISBN into a print-ready EAN-13 book barcode online, free, right in your browser. Add a price add-on and download a high-res PNG. Nothing uploaded.
Italian IVA Calculator (22%) — free online
Add or remove Italy's 22% IVA in euros, with 10/5/4% presets. Free and online, right in your browser, nothing uploaded.
Job Posting Schema Generator — free online
Make ready-to-paste JobPosting JSON-LD so your job listings can show up in Google Jobs. Free and online, right in your browser, nothing uploaded.
JS Minifier & Beautifier — free online
Minify or beautify JavaScript online for free, right in your browser. Strip comments and whitespace or clean up messy code. Nothing is uploaded.
JSON Diff — compare two JSON files free online
Paste two JSON files and see exactly what changed, colour-coded, right in your browser. Free online, order-independent, nothing uploaded.
JSON Formatter — free online tool
Format, minify and check JSON for errors online, free — right in your browser, with nothing uploaded.
JSONPath Tester — free online tool
Test a JSONPath expression against your JSON and see what it matches, free and online, right in your browser with nothing uploaded.
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