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LXR Cross Referencer

Free#2 of 42 in Code Search Tools

LXR Cross Referencer: A focused open-source browser for navigating indexed code across versions and repositories. Ranked #2 of 42 in Code Search Tools by our editors (9.2/10); pricing: Open source; best for web-based multi-version source browsing.

9.2/10Editor score

Visit LXR

LXR Cross Referencer9.2 Visit LXR

At a glance

Editor score
9.2 / 10
Pricing
Open source
Best for
Web-based multi-version source browsing
Paid from
Free
Deployment
Self_hosted
Facts checked
20 Sep 2026

Where it wins
- Links identifiers to their definitions and usages
- Supports multiple languages, versions, and project trees
- Integrates with Git, Subversion, CVS, and Mercurial
Where it doesn't
- Self-hosted deployment requires installation configuration
- Database setup is part of the installation process
- No AI features for code search or navigation

Our verdict on LXR Cross Referencer

LXR Cross Referencer is an open-source, self-hosted tool for browsing and indexing source code through a web interface. It is designed for developers and teams that need searchable, navigable views of source repositories, particularly when comparing code across multiple versions or maintaining several project trees. LXR runs on the web and Linux, and its database-backed index connects identifiers with their definitions and usages across indexed source code.

Its strongest capability is structured code navigation rather than a broad development environment. LXR supports multi-language source parsing, free-text source search, and links between related identifiers, giving users several ways to move through a codebase. Multiple-version browsing and comparison adds value for teams reviewing changes across revisions or preserving access to older source trees. Multiple-project or tree configuration also suits environments that need to expose more than one repository through a shared browsing system.

Repository compatibility covers Git, Subversion, CVS, and Mercurial, which gives LXR a practical fit for teams working with different version-control systems. The trade-off is that deployment is self-hosted, with configuration and database setup handled during installation, so it is better suited to teams prepared to manage the software than to users seeking a hosted search service. LXR should appeal to developers who value browser-based cross-referencing, version comparison, and repository flexibility. Teams wanting AI-assisted search or an integrated development environment experience should choose a different tool.

Your product? Our editors can test LXR Cross Referencer in depth and publish a review, labelled as paid · from $149/mo →

LXR Cross Referencer pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on lxr.sourceforge.io

LXR Cross Referencer fact sheet

Free plan	Not verified
Paid from	Free
Indexing scope	Codebase
Deployment	Self_hosted
Supported languages	Not verified
Regex search	Not verified
Code navigation	Yes
IDE extensions	Not verified
Deployment	Self-hosted
Platforms	Web, Linux
Support	Community, Docs
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Integrations	4 integrations: Git, Subversion, CVS, Mercurial
Pricing	Open source
Website	lxr.sourceforge.io
Facts checked	20 Sep 2026

LXR Cross Referencer integrations

LXR Cross Referencer lists 4 integrations on its own site.

Git
Subversion
CVS
Mercurial

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LXR Cross Referencer vs the competition

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used LXR Cross Referencer for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

LXR Cross Referencer is listed in our Code Search Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update