KitBoxDev
Utility client-side site for devs and electrical engineers
What it does
A free collection of fast browser utilities for developers, DevOps engineers and electrical engineers — QR codes, JWT, hashes and JSON alongside cron, CIDR, YAML, Ohm’s law and resistor codes. Everything runs in your browser. Nothing is uploaded.
Fast, free utilities for developers, DevOps engineers and electrical engineers — QR codes, JWTs and hashes alongside cron, CIDR, Ohm’s law and resistor codes. No accounts, no uploads, no waiting: nothing you type or drop here leaves this page. Most everyday engineering tasks — decoding a token, checking a resistor value, sizing a trace — take about fifteen seconds of actual work. Finding a tool that does them without a sign-up wall, an interstitial, or a paste box that quietly uploads your data takes considerably longer. KitBoxDev is the answer to that: open the page, do the thing, close the tab. The client-side-only constraint is the whole design, not a feature. Cryptographic work uses the…from kitboxdev.com
Does the same job
all alternatives →
- 1S100.st – Dev utilities I built for format conversions and encoding2025 · 100.st · ▲33
I built this because I needed one place for all my dev tasks. Handles JSON/YAML/XML conversions, UUID gen, case transforms, and encoding tools. Built with Next.js/Chakra UI frontend, NGINX on a vps, Cloudflare for dns and cache. All client-side processing for privacy. What tools should I add next? Andrei
More dev tools this month
the category →
Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
Lettertrace▲375Track your AI visibility for free (using your own API keys!)
Dev tools · 25d ago · lettertrace.com
Launched alongside, September 2026
the whole month →
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 1d ago · opentrailpaper.com
Run Qwen3.8-Flash-Next (125B MoE, 104 GB at 4-bit) on Macs with a fraction of that RAM by streaming experts from SSD. MLX + Swift, Ollama-compatible API. - carloslfu/slotstream
Dev tools · 4d ago · github.com
Weedout is a Safari extension that filters out videos YouTube labels as “Made with AI”.
AI · 4d ago · masteranza.github.io
NPC-Forge is a framework for building conversational agents that run on the CPU without relying on machine learning or LLMs. - NPC-Forge/docs/development.md at main · gioblu/NPC-Forge
AI · 1d ago · github.com
Find your next hire or your next role from Hacker News monthly threads. AI-powered matching between candidates and job postings.
AI · 4d ago · hnmatchmaker.com
I made OwnTime to balance between competing priorities in my life. The idea is based on two main influences: the concept of "roles" from "The 5 Choices" (2015), and my repeated failure to effectively implement time blocking due to the necessary flexibility in my role. The app allows you to define time budgets, which are not much more than a few mutually exclusive countdown timers. The UX is essentially that of a chess clock for an arbitrary number of players with configurable time. The whole point of the app is to kick you out of the running role/priority when its time is up. One…
Life & fun · 4d ago · owntime.app