Launched this week
ToolMonk
180+ online tools — from mortgage math to running Java
7 followers
180+ online tools — from mortgage math to running Java
7 followers
180+ free tools — calculators, converters, PDF editor, dev utilities, text tools, and live code compilers for 11 languages. No account. No email. No tracking. Most tools run entirely in your browser. Your PDFs, passwords, and images never leave your device. The code execution environment runs in an isolated sandbox that processes and immediately discards - nothing is stored, ever. One fast, clean platform for everything you'd normally Google and forget.
Hey PH Prasad here, founder of ToolMonk 👋
ToolMonk started because I had an embarrassing number of permanently open tabs.
One for Unix timestamps. One for JSON formatting. Another for base64 decoding. Regex testing. Config diffs. Usually a Python REPL floating around for quick experiments.
Every few weeks, I’d accidentally close them all and spend the next 10 minutes rebuilding my setup.
Eventually I got tired of doing that. So I built one place for all of it.
What was supposed to be a small weekend project somehow turned into 185 tools across 13 categories. because apparently, I don’t know when to stop.
The idea is simple:
All the utility tabs you constantly reopen - in one place. Open it, use it, move on.
A few things I cared deeply about while building it:
Privacy by architecture, not policy
~90% of tools run entirely in your browser. PDF processing, image tools, password generation, format conversion, even AI background removal — all client-side. For tools that need execution (like compilers), everything runs in a sandboxed, network-isolated environment with immediate discard. No logs. No storage. No "trust us."
No logs. No storage. No “trust us.”
Zero friction
No signup. No popups. No cookie banners. No “upgrade to pro.” Ever.
The compiler is real
What started as "just add a Python REPL" turned into 12 language runtimes running inside isolated sandboxes on infrastructure I own and run myself.
I built ToolMonk to feel like the internet utilities I always wanted: fast, private, and boringly reliable.
What's the one utility tool you constantly reopen because there still isn't a great free version? I'm actively building from user requests. Would genuinely love to add good ideas to the backlog.
how does the code compiler sandbox actually handle malicious payloads — like if someone runs something sketchy in python, what stops it from leaking out or eating resources?
@nereriskin22522 Great question, it was one of the first things I focused on before launching.
Every piece of code runs inside a completely isolated sandbox, similar to the kind used in programming competitions and online coding platforms.
On top of that, there's no internet access, strict CPU/memory limits, and every run gets a fresh environment that's destroyed as soon as it finishes. So if someone tries an infinite loop, a memory bomb, or something more sketchy, it just gets terminated without affecting anyone else.
The sandbox is also isolated from the main application, so even in the worst case it can't reach user data or the rest of the platform.
Finally a toolbox that respects my privacy. Tested the JSON formatter and PDF merge, both ran instantly in-browser without any sign-up nonsense. The isolated code sandbox is a really thoughtful touch for a free tool.
@hiraozlen85206 Thank you! Privacy first was non-negotiable from day one glad it shows. Really happy the tools worked well for you.