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CrackStation is an online password hash cracking service that uses pre-computed lookup tables to recover passwords from unsalted hashes. It supports hashes including MD5, SHA1, SHA2 and WPA, accepts up to 20 non-salted hashes, and offers a downloadable wordlist and a command-line tool for local index generation and lookup.
A dictionary-based MD5 reverse lookup service. Users can convert a string to its MD5 hash or submit a hash to look it up in a database of several million entries. The site explains what MD5 is and notes that MD5 hashes are theoretically impossible to reverse directly. It also lists recent successful reverses and links to related cryptography resources.
A cloud GPU password recovery and credential auditing service for data the user owns or is authorized to test. It supports Office, ZIP, PDF, Wi-Fi captures, NTLM and AD hashes, with a free Basic Search and optional paid custom GPU jobs and unlocks. An authenticated REST API and MCP tools are documented. Uploaded files are deleted after hash extraction.
Online hashing tool for generating and checking MD5, SHA, and other common hash values.
Hash search database for looking up password hashes and contributed recovery results.
Community hash-recovery platform for searching, submitting, and discussing password hash challenges.
A site for searching MD5 hashes in a database and generating MD5 digests, with hashing and encoding tools. It notes that hashing is one-way and that matches are found by comparing digests or looking up a hash-to-plaintext database.
A hash lookup service where users submit hashes and search a database of already-cracked hashes for corresponding plaintext. It supports hash types including MD5, SHA-1, SHA-256, SHA-512, MySQL, NTLM, Bcrypt and Wordpress. The database has been built since August 2007.
