This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
LineSolv is a cross-platform desktop calculator that understands phrases like "20% of 150" or "5 kg in pounds." Built with Go + Wails for a ~25 MB binary that starts instantly. Features unit conversion (100+ units), function graphing, step-by-step evaluation, and 7 themes. MIT licensed, open source.
Hey! I'm the maker of LineSolv.
I've been a Numi user for years — the notepad-style calculator where you just type what you mean and get instant results. But Numi is macOS-only, and I always wished it worked on Linux too.
So I built LineSolv. It's a natural-language calculator that runs on Linux, macOS, and Windows. You type things like "20% of 150", "5 kg in pounds", or "plot sin(x)" and it just works.
I chose Go + Wails over Electron because I wanted a small, fast binary — ~25 MB vs 100-200 MB, starts in under a second, uses almost no memory.
It's open source (MIT) and still early — v0.9.0. There's a lot more to build: voice input, custom themes, plugin system. If this sounds interesting, contributions are welcome.
Happy to answer any questions!
The instant startup is genuinely impressive, beats waiting for Electron any day. Step-by-step evaluation is a nice touch for actually understanding what the calculator is doing behind the scenes.
the ~25 MB size and instant startup are genuinely impressive, and unit conversion feels way smoother than typing into a search bar.
the 25mb size and instant startup genuinely surprised me, most calculator apps are bloated for no reason. typing "5 kg in pounds" just worked, no fuss.
LineSolv was submitted on Product Hunt and earned 3 upvotes and 4 comments, placing #159 on the daily leaderboard. LineSolv is a cross-platform desktop calculator that understands phrases like "20% of 150" or "5 kg in pounds." Built with Go + Wails for a ~25 MB binary that starts instantly. Features unit conversion (100+ units), function graphing, step-by-step evaluation, and 7 themes. MIT licensed, open source.
LineSolv was featured in Productivity (656.2k followers), Open Source (68.6k followers), Developer Tools (515.9k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 261k products, making this a competitive space to launch in.
Who hunted LineSolv?
LineSolv was hunted by RK Riad Khan. 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.
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RK Riad Khan