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The Software Heritage archive collects publicly available software in source code form together with its development history. It aims to replicate the collected material to support preservation and to share it with those who need it. The archive grows as new source code is crawled from software projects and development forges. A web interface and API are provided.
Search My Site is an independent search engine focused on personal websites, digital gardens and the small web. It also offers a website search tool that adds a search box to a site with one line of code. The platform is ad-free, privacy-first and open source, with a free Basic listing, a one-month free trial, and a Full listing priced at £12/year.
(USA) An AI search engine specifically for developers that provides direct answers with code examples and context from across the web.
iZito is a metasearch engine that aggregates web search results from multiple sources including Yahoo, Microsoft Bing, YouTube, Wikipedia and Entireweb. It offers advanced search settings for users, and uses functional cookies to deliver non-personalized content. The platform includes standard pages such as About us, Copyright, Disclaimer, Privacy and Contact us.
OpenXNG is a privacy-respecting, open metasearch engine powered by SearXNG version 2026.9.26+c52ce3835. The site provides access to the SearXNG source code, issue tracker, engine statistics, public instances, and contact information for instance maintainers.
Search Engines Compare is a code project with source, releases, documentation, or setup notes.
Directory for browsing awesome lists and curated developer resources by topic.
GritQL is a declarative query language from Grit for searching and modifying source code. It lets users search with code snippets and metavariables, define custom lints, and apply auto-fix rules, and it supports rewriting JavaScript/TypeScript, Python, JSON, Java, Terraform, Solidity, CSS, Markdown, YAML, Rust, Go and SQL.
Effect Group is an OSINT research service that searches 4B+ records across 500+ data sources to confirm a person and unlock a dossier. It offers a 7-day trial on monthly desks, card required, $0 today; packs start at $8 per search.
Phind is an AI-powered search engine built specifically for developers. It delivers instant coding answers, debugging support, and real-time solutions by combining live web search with deep code understanding, and no login is required to use it.
Presearchofficial is the official GitHub repository for Presearch, an open source decentralized search engine powered by its community. The repository hosts the project's source code and associated resources for the search engine platform.
Scribd is a document library offering access to over 300 million human-sourced documents and specialty resources across categories such as business, science, law and study aids. Users can explore and find answers on the go through the Scribd app on web, Android and iOS. The site also allows uploading documents for free to reach a global audience.
Cipher387 is an open source project with code, documentation, and setup resources for OSINT resources.
Escapepod is a free, open source podcast player for Android under the MIT license. It uses a minimalistic two-screen approach: a list of podcasts and a list of episodes for one podcast. It lacks podcast discovery, offering only a simple search, and opens RSS podcast links tapped in a web browser. APKs on Codeberg Releases are signed with a listed certificate.
Kittygram is an anonymous, privacy-friendly, lightweight, open-source frontend for browsing Instagram, inspired by nitter. It serves fully prerendered pages and handles requests itself to reduce tracking. Users can search for users or hashtags, or replace www.instagram.com in Instagram links with the instance domain. The source code is on Codeberg under the AGPL-3.0 license.
Kittygram is an anonymous, privacy-friendly, lightweight, open-source Instagram frontend inspired by nitter. It serves fully prerendered pages instead of the JavaScript-heavy official web interface, and all requests are handled by Kittygram to reduce tracking. Users can search for users or hashtags, or replace www.instagram.com in a link with the domain. The source code is on Codeberg under AGPL-3.0.
Kvaesitso is a search-focused, free and open source launcher for Android. Its site provides a getting started page and documentation, including a contributor guide and a developer guide for building from source and exploring the code.
The ESCAPE Open-source Scientific Software Repository is a curated Zenodo community for sharing scientific software, services and datasets for astro-particle and particle physics communities. Submissions are reviewed for metadata, licensing and documentation, and hosted on Zenodo with persistent DOIs. A Python library supports CodeMeta metadata generation, validation and publishing automation.
OSINT Toolkit Website Information is a collection of tools for researching websites, IP addresses, domains, emails and MAC addresses. It lists lookups including Ping Website, Whois, reverse Whois, network and TLD lookup, IP history and geolocation, MAC vendor lookup, DNS report and header and source code search. The page states that some tools require the IP address, email address, domain name or MAC address of the target.
A custom OSINT tool from Aware Online Academy for investigating a target website. It provides scripts to view historical WHOIS data, check website text and source code on third-party sites, visualise links, map web pages, check Reddit presence, find open FTP ports and find other top level domains.
ALEXA is a collection of genomic methods for alternative expression analysis, identifying and quantifying alternative mRNA transcripts produced by alternative transcript initiation, splicing and polyadenylation. The site provides supplementary materials, source code and downloads for studies and the ALEXA-Seq method for alternative expression analysis by massively parallel RNA sequencing.
A minimal web reader for the King James Version of the Bible, organized into the Old and New Testaments. It presents the text without ads, commentaries or notes, and its source code is available on GitHub for viewing or reporting issues.
Artificial Intelligence: A Modern Approach is the official companion site for the 4th US edition of the AI textbook of the same name, authored by Stuart Russell and Peter Norvig. The textbook is the most widely used AI textbook, adopted by over 1500 schools. The site provides supporting resources including the book's table of contents, code, course materials, exercises, figures, and errata.
The Association of Religion Data Archives (ARDA) is a reference source for data and information on American and international religion, operating since 1997. It provides interactive reports, maps, timelines and datasets for more than 1,000 religious groups, dozens of religious families and multiple religious traditions. Resources include US Religion Census data, congregational membership reports with maps and trend charts, and religion demographics reports for specific US zip codes.
