Ycmd

Visit Tool

ycmd is an open-source code-completion and code-comprehension server that provides APIs for various code-related use cases. It supports semantic GoTo commands and diagnostic error reporting for multiple filetypes.

Claim this tool

1View

At a glance

Pricing

Open Source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is ycmd?

ycmd is a powerful, open-source server designed to provide advanced code-completion and code-comprehension functionalities. Originally a core component of YouCompleteMe, it has been refactored into a standalone project, allowing its integration into various editors beyond Vim. The server offers APIs for semantic GoTo commands, diagnostic error and warning reporting, and intelligent code completion across multiple programming languages. It features several completion engines, including identifier-based, clangd-based for C-family languages, Jedi-based for Python, OmniSharp for C#, gopls for Go, TSServer for JavaScript/TypeScript, jdt.ls for Java, and RLS for Rust. ycmd intelligently merges results from different engines and supports user-level customization through a settings file and an extra configuration file for project-specific settings.

Best used for

Ideal for developers who need to integrate advanced code completion and comprehension features into their preferred text editors or IDEs, and for those building custom development environments. Especially valuable for projects requiring semantic analysis across multiple programming languages like C++, Python, C#, Go, and Java.

Common actions

enhance code editors

provide semantic completion

integrate code intelligence

face swappinggithub copilot"AI Agents"low-code/no-codeautomated workflowopen-sourceworkflowsdeepfakecollaboration

Capabilities

Key features

Code completion server
Code comprehension APIs
Semantic GoTo commands
Diagnostic error reporting
Multi-language support
Customizable settings

Target Audience

developer

Integrations

Not yet documented

Pricing & Plans

Open Source

Free

FAQs

What programming languages does ycmd support for semantic completion?

ycmd offers semantic completion for a wide range of languages, including C-family languages (via clangd), Python (via Jedi), C# (via OmniSharp), Go (via gopls), JavaScript and TypeScript (via TSServer), Java (via jdt.ls), and Rust (via RLS). More language support may be added over time.

How can I integrate ycmd with my preferred code editor?

ycmd provides an API for client implementation. You can refer to the API documentation and the example_client.py file for guidance. Several clients already exist for editors like Vim (YouCompleteMe), Emacs, Atom, Sublime Text, Kakoune, VSCode, Geany, and GNU nano.

Can I customize ycmd's behavior and settings?

Yes, ycmd allows user-level customization. You can provide a modified default_settings.json file to the server on startup using the --options_file flag. Additionally, a .ycm_extra_conf.py file can be used to configure language completers on a per-project or global basis, including LSP server settings.

Trending

Subcategories trending in Coding & Development

Open Source & Models DevOps & Infrastructure No-Code / Low-Code Testing & QA Backend & APIs Prompt Engineering

Trending

Explore

Browse AI tools by category

Content & Design Productivity & Business Coding & Development AI Agents & Automation Research & Education Wellness & Lifestyle Career Development Marketing & Growth Data & Analytics Customer Support & CX Finance E-commerce