A free temporary email service that provides a working inbox on page load, requiring no registration, password or phone number. Users can choose any name and search available domains, and messages arrive in the browser. The site also offers email tools and guides.
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A Chrome extension that reverse-looks up a LinkedIn profile from an email address, returning the name, profile id, username and profile image if a match is found. It requires an active LinkedIn login session and allows up to 50 unique email addresses searched. Version 1.0 was published Sep 3, 2019.
Email search tool for finding public addresses and related information during OSINT investigations.
Caspio search page for finding Cal Poly-related email records or directory information.
OSINT Toolkit provides email and username lookup tools. Users enter a username or email to run general searches, social media searches and messaging app searches. The site notes that username and email results are an approximation, so negative results do not necessarily mean an account is not in use.
A fake mail generator that provides a working email address in one click without sign-up or a phone number. Users type a username and pick or search a domain, and verification codes arrive quickly. It also covers punycode domains and test email addresses.
OSINT platform for reverse email and phone lookups, helping investigators find public account links and digital traces.
WikiLeaks archive for searching emails and documents from the Macron campaign leak.
User Scanner is a two-in-one email and username OSINT suite with native MCP support. It performs deep data extraction from a single email or username, analyzing over 1080 maintained scan vectors, including more than 200 email and 880 username sources. It is intended for security research, investigations, and digital footprinting.
OSINT search page with tools and queries for finding email addresses and related public information online.
h8mail is a Python tool for email OSINT and password breach hunting. It finds passwords through breach and reconnaissance services or local data, supports premium lookup services, and can search .txt and .gz files locally using multiprocessing.
Intelligence X is a provider of free open source intelligence (OSINT) and forensic tools for investigative use. The platform offers a suite of tools for searching third-party sites, performing social media intelligence on Facebook, Twitter, LinkedIn, Telegram and YouTube, plus utilities for validating email addresses, looking up domains, IPs, Bitcoin addresses, images and other data types.
Python tool for collecting email addresses from search engines and public web sources during authorized research.
AgentMail is an email provider built for AI agents. It offers real inboxes through an API, allowing users to create, send, receive, and search email messages via a REST API, intended for autonomous agents and agentic workflows. A free tier is available without a credit card.
WikiLeaks archive for searching AKP emails, documents, senders, dates, and related material.
OSINT tool for finding accounts and public traces connected to an email address across online services.
WikiLeaks search archive for DNC emails, attachments, dates, senders, and related documents.
Have I Been Pwned is a data breach search and notification service. It lets users check whether an email address appears in known data breaches and lists instances where data was found in paste records. It also offers an MCP server that connects AI agents to breach, password, paste, domain and stealer log data.
Desktop email client with unified inbox, search, themes, and productivity features.
Monocles mail is a secure and open source e-mail client for Android, described as a fork of K-9 mail that keeps the known functions of K-9 mail with some UI updates. It supports multiple accounts, a unified inbox, local and server-side search, and OpenPGP email encryption. The source states it is privacy-friendly, with no tracking and only connecting to the user's email provider.
Papra is an open-source document archiving platform for organizing, securing and archiving documents. It offers organizations, document tagging, search, a developer API, webhooks, CLI and SDK, plus email ingestion that imports attachments. The project is available on GitHub under the AGPL-3.0 license and can be self-hosted. Paid plans add storage, members and intake email addresses.
Phonebook.cz is a lookup tool from Intelligence X that lists domains, email addresses, or URLs for a given input domain. Access requires login through an intelx.io account and a paid license. The service states that it searches 313 billion records.
Reverse WHOIS lookup for finding domains connected to the same registrant, email, or ownership details.
WikiLeaks archive for searching the Sony email release and related historical documents.