ToolsFusion

What it does

Free calculators, converters, and generators for developers, freelancers, and small businesses. Stripe & PayPal fees, profit margins, freelance rates, AI token costs, invoice PDF generator, QR codes, OG meta tag previews, image compression, barcode generator, and more. No account. No signup. Nothing ever leaves your browser — every tool processes your data locally, on your device.

Free calculators and converters for developers, freelancers, and businesses. Stripe fees, profit margins, JSON to CSV, Base64, and more. No account needed.

Calculate Stripe and PayPal fees to the cent, convert JSON to Excel in seconds, transform text casing, encode Base64 images — all free, all instant, no account needed. Calculate the hourly rate you actually need to charge — factoring in taxes, time off, and expenses most freelancers forget. Know exactly what to charge a client for an AI voice agent — based on real Vapi, Retell, and Bland costs, not guesswork. See exactly what PayPal takes from a payment — including international fees and currency conversion — before you invoice. Every calculation and conversion runs entirely inside your browser. We never receive, store, or log your numbers, files, or text. Not even temporarily. These tools…from thetoolsfusion.com

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  Toolbrew – Free little tools without signups or ads2025 · toolbrew.co · ▲269

  I got tired of fighting through spammy tool sites just to do something simple, so I made Toolbrew in a few hours on Replit. Just a bunch of free little tools in one place. Text converters, SEO checks, video downloaders, that kind of stuff. No signups, no ads. If there is a tool you wish existed, you can request it on the site and I will build it. Do your worst. Seriously, ANY tool. Maybe it helps, maybe not. Enjoy!

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  ToolszyJul 2026 · toolszy.in · ▲8

  Toolszy — free online tools platform

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  ToolHop – Fast, simple utilities for every workflowNov 2025 · toolhop.app · ▲5

  ToolHop is your all-in-one browser toolbox with 200+ fast-loading calculators, converters, generators, color labs, and dev helpers. Use global search or curated categories to jump straight into the right utility, run it client-side for instant feedback, and deep-link results to your team. Whether you’re formatting copy, validating data, checking DNS, or exploring palettes, ToolHop keeps your core workflows a single tab away, and it’s entirely free, no account required. --- I built ToolHop because I was sick of the usual “free tool” bait-and-switch. Every time I needed to convert an image,…

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  ToolsForgeJun 2026 · toolsforge-app.vercel.app · ▲3

  Free business tools for freelancers — no signup needed

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  Free Utility ToolsDec 2025 · onerobot.dev · ▲5

  98 free tools. Zero BS. Just click and done.

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  ToolCraftJul 2026 · toolcraftbox.com · ▲3

  48 free online tools protect privacy (no uploads,no sign-up)

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  /dev/null▲490

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 29d ago · corespeed.io

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  The load-bearing vocabulary of Claude▲710

  Life & fun · Aug 2026 · louisabraham.github.io

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  Hey Noah▲656

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

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  Clipto MCP▲655

  Hey HN, We recently built Clipto. It’s a tool that lets you search over terabytes of video, audio, and images on your computer, without relying on the cloud. Motivation: we probably all had this similar experience, we know a moment exists in a video or audio, but finding it takes hours scrubbing the timeline. You can send all the media to process in the cloud, but it’s slow, expensive and raises privacy concerns. So we decided to build our own on-device media search engine. How it works (high level): 1. We ingest video, audio, image; normalize formats via ffmpeg; run content analysis to…

  Work · Aug 2026 · clipto.com

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  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

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  AdAnt AI▲620

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

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  Astute▲606

  Automate your B2B brand going viral, with new media creators

  AI · Aug 2026 · company-app.joinastute.com