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Life & fun · alternatives · 2026

IM

24 alternatives to I made a calculator builder to increase engagement and conversions

Hi HN, I am a solopreneur in the evenings and a software engineer during the day. In the past, I have created lots of calculators for my web projects and freelancing friends. These were pretty basic, but users always welcomed them. I also used currently available builders, but the problem was that they were either slow, broke on mobile devices, had nonsense page view limits, or were expensive. Some even ticked all those boxes. So I have decided to create my own, with a simple interface, and called it Creative Widgets (if it ever takes off, I plan to add more exciting stuff like charts, etc,…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I made a calculator builder to increase engagement and conversions launched in 2024; newer entries below may have overtaken it.

  1. 1IQ

    Quick background: I used to code. Studied it in school, wrote some projects, but eventually convinced myself I wasn't cut out for it. Too slow, too many bugs, imposter syndrome — the usual story. So I pivoted, ended up as an investment associate at an early-stage angel fund, and haven't written real code in years. Fast forward to now. I'm a Buffett nerd — big believer in compound interest as a mental model for life. I run compound interest calculations constantly. Not because I need to, but because watching numbers grow over 30-40 years keeps me patient when markets get wild. It's basically…

    Jan 2026 · calquio.com · its alternatives →

  2. 2

    I figured I needed to work on my coding skills before building the next groundbreaking AI app, so I started working on this free tool site. Its basically just an aggregation of various commonly used calculators and unit convertors. Link: https://www.calcverse.live Tech Stack: Next, React, Typescript, shadcn UI, Tailwind CSS Would greatly appreciate your feedback on the UI/UX and accessibilty. I struggled the most with navigation. I've added a search box, a sidebar, breadcrumbs and pages with grids of cards leading to the respective calculator or unit convertor, but not sure if…

    2025 · calcverse.live · its alternatives →

  3. 3IG

    I’ve always found that online calculators tend to have bad UIs, especially on mobile. Most of the calculator websites I’ve come across use outdated and inconvenient ways of inputting data, or they format the results in confusing ways. I’ve noticed that fraction calculators (especially mixed fractions) are terrible to use, even on desktop. I haven’t built one of those yet, but it’s something I’m planning to tackle soon. This is a project I’ve always wanted to work on, but I’m relatively new to this space. So far, I’ve created a collection of simple calculators focused on math and finance. I’d…

    2025 · its alternatives →

  4. 4

    Build proposals, quotes, ROI, and any calculator you want!

    2024 · formaloo.com · its alternatives →

  5. 5

    Should you build an internal tool or just buy it?

    2022 · baremetrics.com · its alternatives →

  6. 6

    I Built a Comprehensive Suite of Free Online Tools: 300+ Calculators, Converters, and Random Generators After months of coding and development, I'm excited to share my website offering a vast collection of free online calculators, unit converters, and random generators all in one place. This project was created to simplify everyday tasks and provide accurate tools for various needs. What You'll Find on My Site: Calculators: - Financial tools: ROI, APY, mortgage calculators - Business tools: Break-even, commission calculators - Mathematics: From basic to advanced functions - Health: BMI, BMR,…

    2025 · calculatinghub.com · its alternatives →

  7. 7

    Build website calculators with no code, just spreadsheets

    2024 · calculatorstudio.co · its alternatives →

  8. 8RI

    Hi HN! I'm a developer who noticed that I haven't done much experimentation lately. I decided I wanted to change that this year. This month I built a simple resume builder with the main goal of practicing front-end development, and to scratch an itch I had when updating my resume. :) After it was functional enough, I casually shared with some friends to express my enjoyment of crafting something just for the sake of having some fun. To my surprise they ended up asking how they could send to others. So I went one step further, due to my pure excitement, and hosted it on Netlify to make…

    2022 · resumecreator.io · its alternatives →

  9. 9

    Start building the future of your company, today. Create powerful on brand calculators, lead generation forms and apps that automate your marketing and sales processes.

    2019 · convertcalculator.co · its alternatives →

  10. 10

    Hey Hacker News, I'm the maker of Kopage, a free & self-hosted Website Builder. While working on new, cool features (AI, of course), it would be great to hear some HN feedback :) Thanks, Simon

    2024 · kopage.com · its alternatives →

  11. 11IM

    I'm documenting everything about my process. From learning to code, to building the app, and all the way to my outreach efforts. I'm learning as I go and sharing it with everyone who's not a programer, and is daunted to build a software on their own. Trust me. If I can do it, anyone can! You can find my updates on: https://Claritask.com ...as well as video updates on https://www.youtube.com/channel/UCdmqmifW4kIcPclXigay1dQ Would love to hear your feedback on my progress and if you have any suggestions on what I can do better. There's so many task managers out…

    2017 · its alternatives →

  12. 12IG

    I recently quit my job at a decent TTS company I was working for as a software developer advocate to pursue what I have always enjoyed doing, which is creating software that is helpful. Before and after quitting my job, I have always found it expensive and time-consuming to hire a designer that can come up with a decent logo for my software, and as a software engineer, I really enjoy coding, not designing. One day, I made a pretty bold move to design a logo, and it took me a whole day to come up with a logo that looks nice. This is the reason I built Owl AI, a logo generator that generates…

    2024 · app.owlai.art · its alternatives →

  13. 13IB

    A few years ago, I started managing my finances using Google Sheets. It worked fine for a while, but then I hit some limitations. As my financial planning needs grew more complex, I found myself struggling with tracking assets and forecasting future financial scenarios. Thus, I started to work in my spare time on building FinancialAha: https://www.financialaha.com - a financial planning app designed to do everything my spreadsheets couldn’t. It is completely free and I intend to add some paid features later on as listed on the pricing page, but I want to keep it free for people…

    2024 · its alternatives →

  14. 14IB

    I was somewhat hesitant about sharing this personal projects, especially since I just saw that cool looking Werk[1] tool posted, but I figured that my ADHD-fueled creation might still have it's own place to be. I just finished rewriting the code for a personal tool I use to automate terminal tasks while minimizing the amount of Python/Bash code I have to write. As with all other tools I create for my own use, the guiding principle is simplicity and approachability, as if the tool creates more issues or friction than it solves, I'll get discouraged from using it again. [1]:…

    Jun 2026 · 0xff.nu · its alternatives →

  15. 15MF

    Here is the link: http://www.wikihowtodo.com I know a lot of geeks share the same dream -- build the next kick-ass todo-list/project management system. So do I. However, as I was quite positive that my web development skill is worse than 99% of developers' in this community, I decided to build something simple, useless but unique. So I built this. Basically it's a Wikihow scraper, nothing more. It gives you a place to store interesting Wikihow articles and yes, they are converted into todo lists. I know this site is not that good, but I still need your guys' feedback. For example, as I am a…

    2010 · wikihowtodo.com · its alternatives →

  16. 16IB

    Hey HN, I've just begun my solopreneur journey. I've been a "serial starter" - often starting projects and never seeing them through, and I have finally finished my first project! Maybe this sentiment resonants with some of you, let me know in the comments below I built this tool as a simple no-risk method for turning more visitors into customers by A/B testing your sale promotions and automatically displaying the promotion with the highest conversion rate. Did you know that increasing your conversion rate by just half a percent can have a dramatic impact on your sales without needing…

    2024 · smartsalebanner.com · its alternatives →

  17. 17

    I built a tool (https://1mil.app/hn) to help me test my intuition about various weird business ideas that were on my mind. Initially, I wanted to create a database with 1 million business ideas (hence the name - "1 million opportunities"). But turned out to be a dumb idea already. So instead I built this tool that returns only 10 ideas. It's all based on your input, market + your background. The first release scored on demand only and it gave false confidence. So I rebuilt the the scoring around "winnability": can a solo founder with a specific background "win" against what…

    Aug 2026 · 1mil.app · its alternatives →

  18. 18IM

    Hey everyone! I'm really excited to share a side project I've been pouring my heart into lately. As a developer with over five years of experience, I've taken on my fair share of freelance web development projects. In the beginning, I always coded everything from scratch, but as I juggled more projects simultaneously, I started using Webflow to save time. While Webflow was definitely a lifesaver, I couldn't help but wish for an even faster way to set up a website – something that would allow me to start with a template and then easily customize it to my heart's content. The problem with most…

    2024 · instawebai.com · its alternatives →

  19. 19IP

    Hey hackers, Like many of you, I'm always trying to optimize my productivity, and I have tried a lot of apps out there to do so. I didn't find the exact one that I could use, so I built one for myself. Check it out and let me know if you have any thoughts!

    2024 · focusmax.io · its alternatives →

  20. 20

    Hi, all I worked on this tool a couple of months. I always had trouble creating a logo for my next project so I decided to automate it. Appreciate any feedback. Cheers, Dan

    2024 · logo-ship.com · its alternatives →

  21. 21IV

    Hey my name is Ivo and I'm a developer and a startup entusiast. My girlfriend was out of the coutry for the weekend and I decided to do something cool like building a startup. I've done a few startups over the years but that's the first I actually released, I would love to hear your feedback on it.

    2024 · craftlynow.com · its alternatives →

  22. 22

    Customizable Calculator

    2020 · apps.apple.com · its alternatives →

  23. 23IB

    Hi HN, I’ve been working on an AI-powered website builder that allows anyone to create a fully functional website in just a few minutes. No coding, no design skills—just a simple, intuitive process with AI handling the heavy lifting. Here’s what you can do with it: • Create a website by entering a name, description, and subdomain. • Use AI to design the site, customize content, and edit sections with simple prompts. • Preview, tweak, and publish your website live instantly. • Download the code for full flexibility if you want to self-host or integrate. It’s still an MVP, and I’ve got lots of…

    2024 · aiwebsitebuilder.tech · its alternatives →

  24. 24

    Hi everyone, We have been developing a platform to enable professionals to build AI assistants to help them through their work. After a few months, we realized people are trying to sell basic functionalities that can be built from scratch in a couple of hours. Due to this, individuals who are not familiar with the current SOTA are misinformed about the potential of generative models. So, we decided to open up some of our most popular templates as standalone tools for free to empower individuals and set a solid standard for what people should expect. We believe the barrier to accessing…

    2024 · join.modularmind.app · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →