Features Overview
Overview of all Haltman.io open-source projects and their core capabilities.
Open Source OSINT Tools
All tools are written in Go 1.22+, designed for speed, explicit control, and pipeline-friendly output. Most require no API key and no configuration files.
Zero Config
Most tools work out of the box — no keys, no env vars, no config files.
Pipeline-Friendly
Structured, line-oriented output designed for grep, awk, and automation.
Proxy & TLS
HTTP, HTTPS, and SOCKS5 proxy support. Optional TLS bypass for lab environments.
Rate Limiting
Built-in rate limiting and concurrency controls for safe operation at scale.
Tool Comparison
| Tool | API Key Required | Data Source | Primary Use Case |
|---|---|---|---|
| ip-thc | No | ip.thc.org | Reverse DNS, subdomains, CNAME |
| search-leaks | No | Hudson Rock | Breach/leak statistics |
| reverse-whois | Yes (WhoisXML) | WhoisXML API | Reverse WHOIS enumeration |
| sub-alter | Yes (WhoisXML) | WhoisXML API | Domain/subdomain discovery |
| brave-search | Yes (Brave) | Brave Search | URL extraction from search |
Mail Forwarding Service
A complete, free, public mail forwarding service at forward.haltman.io.
Key characteristics
- Stateless — no mailbox storage, forwarding only
- Abuse-aware — email confirmation, rate limiting, anti-spoofing
- Fully open-source — no open-core, no artificial limitations, no telemetry
- Self-hostable — complete documentation to deploy on your own infrastructure
Stack Components
| Component | Technology | Role |
|---|---|---|
| Core Stack | Postfix, MariaDB, PostSRSd, OpenDKIM | SMTP forwarding engine |
| API | Node.js, Express | Alias management endpoints |
| UI | Next.js, React, TailwindCSS | Web frontend for users |
| Cleanup | Bash, cron | Expired token purge |
Design Principles
All projects are intentionally simple and transparent. If you understand the underlying technology (SMTP, DNS, HTTP), you can understand and trust the implementation.
Last updated today