Other4 days ago
calculate.at — 305+ Calculators, No Signup Required
Every calculator you'll ever need for money, health, math, and everyday conversions — worked examples included, nothing to sign up for.
@calculate_at · X
The full gallery
Tech stack
60 projects
Every calculator you'll ever need for money, health, math, and everyday conversions — worked examples included, nothing to sign up for.
@calculate_at · X
Practice Java interview questions daily with a streak counter, no signup required.
@ByteCrafter2344 · X
Making practice as a habit.
200+ free browser-based tools for invoicing, rentals, online selling, and real estate—no signup needed.
u/Cryingpinaple · Reddit
Built a free toolkit that grew into 5 sites, 200+ tools, no signup required I started this a few days ago to build a free invoicing tool for freelancers because everything I found was gated behind a signup wall or a "free trial." It turned into a small portfolio of 5 sites, each aimed at a different kind of solo operator: Ledgerline: invoicing, contracts, and tax calculators for freelancers Rentline: rent increase letters, late fee calculators, and lease guides for landlords Sellerline:
Press a mysterious button and discover what happens.
@saralsachan · X
Waste you time on weird websites
Instantly convert AI-generated text into natural, human-like writing without signing up.
fendouai · GitHub
humanize-text-skill Free AI Humanizer: Humanize AI Text Online
Visual CSV matching tool without login requirements.
ngarner · HN
ZeroGate – Fast, account-free visual CSV matching without AI
Restaurant reservation tool that charges guests who don't show, reducing no-shows by up to 80%.
@ReserveT37916 · X
Check live crowd levels at over 1,000 attractions worldwide without signing up.
@javiercast · X
Hi, let´s connect, building crowd advisor for travelers and help plan your trips.
Generate follow-up emails for unpaid invoices instantly, no signup needed.
@forgeos_ai · X
🚀 First public build. I just launched Forge Invoice — a tiny tool that helps freelancers generate follow-up emails for unpaid invoices. No signup. Free. Copy & send instantly. I'd love your feedback. #buildinpublic #indiehackers
Sign documents in WhatsApp instantly with certified copies—no app or account required.
@InklineSign · X
Anonymous peer-to-peer voice chat with strangers, no account needed.
@BoSHADE · X
