Launched this week
ContractScan
Find smart contract vulnerabilities in seconds
6 followers
Find smart contract vulnerabilities in seconds
6 followers
ContractScan runs 5 security engines in parallel — Slither, Semgrep, Mythril, Aderyn, and AI — on Solidity or Rust/Near contracts. No CLI setup. ~30 second results. Free QuickScan: no signup. $4.99 Deep Scan: full 5-engine report. $59/mo Pro: unlimited + CI/CD. 5 real-world threat intel sources: 686 DeFi exploits, Solodit, Code4rena, Sherlock — all integrated. Goal: detect every vulnerability type ever exploited in production.
Hey Hunters!
I'm the maker of ContractScan — the fastest smart contract security scanner.
We got tired of running Slither, MythX, Semgrep, Aderyn, and 3 more tools separately and then spending hours correlating results.
So we built ContractScan: 5 audit engines in parallel → one clean report in ~30 seconds.
What makes it different:
Completely free QuickScan — no signup, just paste code or contract address
Supports Solidity + Rust (Near) — not just EVM
Every finding linked to real exploits with actual loss amounts (The DAO, Ronin, etc.)
Already integrated 686 DeFi hacks + major audit reports
We're currently in public beta and QuickScan is 100% free.
Would love your honest feedback — especially on false positives and which vulnerability types matter most to you.
Try it here → https://contract-scanner.raccoonworld.xyz
Hey everyone, maker here 👋
Thanks for hunting ContractScan! Happy to answer any questions.
Quick backstory: I built this after MythX announced shutdown. Setting up Slither/Mythril locally takes 30+ minutes of dependency hell — solc version conflicts, Python env issues, etc. I wanted something that just works in the browser.
What makes ContractScan different:
5 engines simultaneously (Slither + Mythril + Semgrep + Aderyn + AI) — each catches different vulnerability patterns
No CLI setup. Paste your code or drop a GitHub URL, get results in ~60 seconds
Each engine's findings shown separately so you can see which tool flagged what and why
The free tier gives you Slither + Semgrep with no login required. Full 5-engine runs are on Pro.
If you're doing Solidity work — pre-audit prep, DeFi contracts, anything onchain — give it a try and let me know what you think. Feature requests and questions welcome here!