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Merondis
Free calculators, converters & PDF tools — no signup
Merondis is a free, no-signup collection of 75+ online tools — calculators for finance and health, unit converters, PDF tools, developer utilities, and more. Everything runs in your browser, nothing is uploaded to a server, and there's no account required. Built as a side project to be the tool site I wished existed: fast, clean, and genuinely free.
Hey Product Hunt! 👋
I'm a database engineer by day, and I built Merondis on the side because I kept getting frustrated with calculator sites that feel cluttered, ad-heavy, or slow. I wanted something clean, fast, and genuinely free, no account walls, no upsells.
It's grown into 75+ tools across finance, health, PDF editing, developer utilities, and color tools, plus a small blog explaining the math/logic behind some of the trickier calculators (like EMI and compound interest).
Everything runs client-side in your browser, your PDFs, text, and numbers never touch a server, which was a deliberate choice for privacy and speed.
Would love your feedback, especially on what tools you'd want to see next. Thanks for checking it out!
Love that everything runs locally with no signup, super clean. One idea: add a quick "favorite" or "pin" option so I can bookmark the specific tools I use most often, maybe with keyboard shortcuts. Would save me from digging through the list every time I need the same calculator.
Tried the BMI calculator and a PDF merge tool, both loaded instantly with no ads or popups begging me to sign up. The whole thing feels refreshingly honest for a free tool site.
Tried the PDF merge tool and it actually handled a 40-page file without a hitch, no upload wait. The fact that everything just runs locally is a really nice touch, especially for the file utilities.
About Merondis on Product Hunt
“Free calculators, converters & PDF tools — no signup”
Merondis was submitted on Product Hunt and earned 6 upvotes and 4 comments, placing #151 on the daily leaderboard. Merondis is a free, no-signup collection of 75+ online tools — calculators for finance and health, unit converters, PDF tools, developer utilities, and more. Everything runs in your browser, nothing is uploaded to a server, and there's no account required. Built as a side project to be the tool site I wished existed: fast, clean, and genuinely free.
Merondis was featured in Design Tools (261.4k followers), Productivity (656.6k followers) and Developer Tools (516.2k followers) on Product Hunt. Together, these topics include over 264.6k products, making this a competitive space to launch in.
Who hunted Merondis?
Merondis was hunted by Veersh Vimal Anand Murugaian. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Merondis stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Veersh Vimal Anand Murugaian