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Alternatives

Products that do what Rekos does

Turn emails, usernames, domains, and IPs into investigations

  1. 1
    OpenSEO934

    The open source Ahrefs alternative

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  2. 2
    Reakit206

    A toolkit to build accessible web apps with React

    2019

  3. 3

    hey guys, wanted to show one of my side projects i just made public. the idea is basically another osint tool for pentesters and bug bounty hunters. it watches certificate transparency logs and checks newly-seen domains for exposed stuff like .env files, open .git dirs, config files, db dumps and so on, and puts whatever it finds into a searchable db. you just search a domain (or part of one) and see what's exposed. it's read-only and free. one thing i've been thinking about adding is a way to register for certain keywords and get notified when something new shows up for that search. would…

    Jul 2026 · search.cerast-intelligence.com

  4. 4

    Discover the best open-source projects

    2024

  5. 5VA

    VEKOS(Verified Experimental Kernel OS) is a Rust-based experimental kernel that focuses on runtime verification and security. Every filesystem operation and memory allocation generates cryptographic proofs that can be verified in real-time, ensuring system integrity. Think of it like a blockchain for OS operations rather than just storage verification. Key features: - Merkle tree-backed filesystem with operation verification - Memory manager with CoW and proof generation - Buddy allocator with zone-based memory management - Shell with VT100 support - Verified boot sequence with stage…

    2024 · github.com

  6. 6
    OpenOs280

    ChatGpt for user, financial & marketing data analysis

    2023

  7. 7
    Slik507

    Get automated leads from a database of 70 million people 📊

    2017

  8. 8SA

    Slint is a declarative GUI toolkit written primarily in Rust, with API support for multiple programming languages such as C++ and JavaScript. It is designed for desktop and embedded usage. The Slint website has just been redesigned. And we added a new Royalty-Free License option besides GPL and commercial

    2023 · slint.dev

  9. 9IB

    I work on R00M 101, a Reddit-based OSINT profiler. While building it, I realized most open-source intelligence (OSINT) tools are scattered across GitHub, outdated blog posts, or random Discords. So I put together a public-facing directory of 100+ OSINT tools used by analysts, journalists, and security folks, free, filterable, and categorized by risk, platform, and use case. The idea was to make something useful and no-friction. Built with static HTML + SQL backend + a lot of caffeine. Would love feedback on how to improve the UX or tool curation. If anyone wants to contribute tools or help…

    2025 · r00m101.com

  10. 10

    Find anyone's email. No bounces.

    2016

  11. 11OC

    A project which groups together curated open source intelligence tools, frameworks, and techniques.

    Apr 2026 · osintradar.com

  12. 12CR

    This is an evolving toolkit of capabilities helpful for analysing and reverse engineering legacy Cobol code. Currently, the following capabilities are available: - Program / Section-level flowchart generation based on AST (SVG or PNG) - Parse Tree generation (with export to JSON) - Control Flow Tree generation (with export to JSON) - Allows embedding code comments as comment nodes in the graph - The SMOJOL Interpreter (WIP) - Injecting AST and Control Flow into Neo4J - Injecting Cobol data layouts from Data Division into Neo4J (with dependencies like MOVE, COMPUTE, etc.) + export to…

    2024 · github.com

  13. 13

    Chrome extension looks up phone/email/IP/people via APIs

    2021

  14. 14OA
  15. 15

    Domain health analysis for high performance email campaigns

    Jul 2026 · lens.folderly.com

  16. 16

    The only OSINT tool you will ever need

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  17. 17

    Find hidden domain relationships with OSINT

    Apr 2026 · osintdomain.com

  18. 18

    Open-source email processing built in Erlang

    2014

  19. 19IO

    2015 · be5invis.github.io

  20. 20

    Free OSINT tool for investigating domains.

    28d ago · github.com

  21. 21

    Free osint username search tool

    Sep 2025

  22. 22

    Free OSINT & Cybersecurity Tools. No Signup Required.

    Jun 2026

  23. 23
    Resso9

    Organize, visualise and control your infrastructure

    Jul 2026 · extiri.com

  24. 24

    Everything the internet sees about your domains

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