Tool Vault
100+ Free Converters, Generators, & Calculators!
What it does
I created Tool Vault as a fun side project to see how 1 guy compares to 40 person companies doing the same thing. ive worked really hard on this and am excited to continue working on this project. I wont stop at 100 tools (were past that) i wont stop at 500 tools, i wont stop at 1,000.
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- C6Created 60 free useful tools in one place2025 · kewltools.com · ▲7
Hey there, I'm a solo dev behind KewlTools. So I'm one of those people who like to build their own tools/utilities whenever they a) want to get something done, or b) want to learn something. c) don't want to spend ages finding a utilty and going through walls of ads. I gradually built 66 tools, all free, fast, ad-free, and zero login. I (and my family/friends) use these daily, so thought some of you will find it useful! Any suggestions, improving current tools or adding new ones, please let me know.
- IVI vibecoded 177 tools for my own use (CalcBin)Feb 2026 · calcbin.com · ▲15
Hey HN! I've been building random tools whenever I needed them over the past few months, and now I have 177 of them. Started because I was tired of sketchy converter sites with 10 ads, so I just... made my own. Some highlights for the dev crowd: Developer tools: - UUID Generator (v1/v4/v7, bulk generation): https://calcbin.com/tools/uuid-generator - JWT Generator & Decoder: https://calcbin.com/tools/jwt-generator - JSON Formatter/Validator: https://calcbin.com/tools/json-formatter - Cron Expression Generator (with…
- IMI made a calculator builder to increase engagement and conversions2024 · creativewidgets.io · ▲9
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,…
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