Dev tools · alternatives · 2026

24 alternatives to Advanced Code Search with Tree-sitter AST and Qdrant Vector DB

For the past couple of months, I’ve been building a tool that enables natural language search over large codebases using Tree-Sitter for syntax parsing and Qdrant for vector-based retrieval. https://app.repogram.com ### How It Works - Tree-Sitter is used to parse syntax trees and extract high-quality vector embeddings of code. - These embeddings are stored in Qdrant, enabling fast similarity search across your entire repo. - A combination of re-ranking processes refine search results, producing highly relevant answers to code-related questions. The results have been incredibly…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
I ported Tree-sitter to Go▲222
This started as a hard requirement for my TUI-based editor application, it ended up going in a few different directions. A suite of tools that help with semantic code entities: https://github.com/odvcencio/gts-suite A next-gen version control system called Got: https://github.com/odvcencio/got I think this has some pretty big potential! I think there's many classes of application (particularly legacy architecture) that can benefit from these kinds of analysis tooling. My next post will be about composing all these together, an exciting project I call…
Feb 2026 · github.com · its alternatives →
2
CodeRLM – Tree-sitter-backed code indexing for LLM agents▲81
I've been building a tool that changes how LLM coding agents explore codebases, and I wanted to share it along with some early observations. Typically claude code globs directories, greps for patterns, and reads files with minimal guidance. It works in kind of the same way you'd learn to navigate a city by walking every street. You'll eventually build a mental map, but claude never does - at least not any that persists across different contexts. The Recursive Language Models paper from Zhang, Kraska, and Khattab at MIT CSAIL introduced a cleaner framing. Instead of cramming everything into…
Feb 2026 · github.com · its alternatives →
3
Tree-sitter Integration for Swift▲52
I have created a Swift package (https://github.com/daspoon/tree-sitter-kit) enabling tree-sitter parsers to be written in Swift; specifically, as an array of production rules which map symbol types to pairings of syntax expression and type constructor. A member macro derives a tree-sitter grammar and embeds the generated parser in its expansion. This project is a work in progress, and I will be grateful for any feedback. Thanks, Dave
2024 · github.com · its alternatives →
4AI
Anyone interested in a tool helps to explore C++ ASTs▲49
I built this software to help users who need to do static code analysis for C/C++ codebase. This can help you to explore the ASTs interactively. It can replace the Clang ast dump completely and also you can search the code/ASTs in a structual way. For example you can search a function which matches specific name or number of paremeters.
May 2026 · uvic-aurora.github.io · its alternatives →
5
I replaced vector databases with Git for AI memory (PoC)▲198
Hey HN! I built a proof-of-concept for AI memory using Git instead of vector databases. The insight: Git already solved versioned document management. Why are we building complex vector stores when we could just use markdown files with Git's built-in diff/blame/history? How it works: Memories stored as markdown files in a Git repo Each conversation = one commit git diff shows how understanding evolves over time BM25 for search (no embeddings needed) LLMs generate search queries from conversation context Example: Ask "how has my project evolved?" and it uses git diff to show actual…
2025 · github.com · its alternatives →
6WS
Web search using a ChatGPT-like model that can cite its sources▲318
We’ve trained a generative AI model to browse the web and answer questions/retrieve code snippets directly. Unlike ChatGPT, it has access to primary sources and is able to cite them when you hover over an answer (click on the text to go to the source being cited). We also show regular Bing results side-by-side with our AI answer. The model is an 11-billion parameter T5-derivative that has been fine-tuned on feedback given on hundreds of thousands of searches done (anonymously) on our platform. Giving the model web access lessens its burden to need to store a snapshot of human knowledge…
2022 · beta.sayhello.so · its alternatives →
7
Code Finder▲255
The ultimate search engine for GitHub repositories
2024 · codefinder.dev · its alternatives →
8
How we leapfrogged traditional vector based RAG with a 'language map'▲162
TL;DR: Vector-based RAG performs poorly for many real-world applications like codebase chats, and you should consider 'language maps'. Part of our mission at Mutable.ai is to make it much easier for developers to build and understand software. One of the natural ways to do this is to create a codebase chat, that answer questions about your repo and help you build features. It might seem simple to plug in your codebase into a state-of-the-art LLM, but LLMs have two limitations that make human-level assistance with code difficult: 1. They currently have context windows that are too small to…
2024 · twitter.com · its alternatives →
9CA
Codebased, an AI Search Engine for Code▲17
Codebased combines Tree Sitter for code awareness (find functions, data structures, constants, etc. not just lines of code), full-text search using SQLite, and semantic search using OpenAI embeddings + FAISS. Despite being implemented in Python, supporting semantic search, making multiple API calls for embedding and re-ranking, it is faster than ripgrep for runng searches against the Linux kernel (takes ~1 second vs. ~2 seconds, obviously depends on system, temperature, time of day, tidal forces, etc.) Up next: - A Perplexity-like agent for interpreting results, making multiple follow-up…
2024 · codebased.sh · its alternatives →
10
Semantica – Semantic Code Search Using Vectorized Abstract Syntax Trees▲6
Semantic Code Search Using Vectorized Abstract Syntax Trees - baristaGeek/semantica
2023 · github.com · its alternatives →
11WP
What parts of your code are not original▲104
Hello, Are you curious to discover which snippets of your code were copied from Stackoverflow? Where else on the Internet are those icons that you copied a long time ago? Or simply to discover which licenses apply to the open source in your code? There's an app for that: http://triplecheck.net/quantum/ Development of this tooling took over two years, we archived over 630Tb of open source data around the web. Some sources of data have gone offline in the meanwhile but we kept a copy for posterity. Things to consider: - Stackoverflow snippet detection is limited to Java at…
2016 · its alternatives →
12
Crespo – Tree-sitter AST blueprints instead of raw code for LLMs▲14
Crisp Repos, Sharp AI. Contribute to hrudulmmn/crespo development by creating an account on GitHub.
Jun 2026 · github.com · its alternatives →
13
CLI tool for detecting non-exact code duplication with embedding models▲91
Embedding-based code duplication detector. Contribute to rafal-qa/slopo development by creating an account on GitHub.
Jul 2026 · github.com · its alternatives →
14
DevSwat AST- visualizer with analyzer ▲81
Turn codebases into interactive maps, graphs, and governance
Jul 2026 · dev-swat.com · its alternatives →
15
A NLP Library for Matching Parse Trees▲46
Language Lego. Contribute to ayoungprogrammer/Lango development by creating an account on GitHub.
2016 · github.com · its alternatives →
16
GitHub-assistant – Natural language questions from your GitHub data▲49
Simon(sfarshid) and I spend a lot of time on GitHub. As data nerds we put together a quick tool to explore your repository’s data. How it works: - Data Loading: We use dlt to pull data (issues, PRs, commits, stars) from GitHub - Semantic Layer: Relta wraps the underlying dataset into a semantic layer so the LLM doesn’t hallucinate. - Text-to-SQL: A text-to-SQL agent transforms your plain-English question into a query using the semantic layer - Generative Charts: assistant-ui dynamically generates a chart based on the SQL query - Refinements: If the semantic layer can’t handle your question,…
2024 · github.com · its alternatives →
17
Onboard-CLI, a LLM powered and AST-based tool to visualize codebase▲24
Onboard-CLI—a blazing-fast developer tool I built in Go. It uses AST parsing (Tree-sitter) to map out codebase architecture and automatically blocks spaghetti code and bad dependencies locally before you even commit. I heavily optimized the concurrency, so it can parse 50k+ files in under 10 seconds.
Jul 2026 · github.com · its alternatives →
18
Enhancing GPT with domain knowledge using vector databases▲12
Autoregressive language models such as GPT and LLaMA have a tendency to hallucinate when asked about out-of-domain questions. An easy way to minimize these hallucinations is to supply LLMs with external sources of domain-specific data using a vector database. To this end, we built OSSChat, a GPT- and Zilliz-powered project that you can use to ask questions about, summarize, and analyze open source projects by indexing the documentation and automatically searching for relevant documents when asking a question (these documents are then injected into the LLM as prompt). While we decided to…
2023 · osschat.io · its alternatives →
19
Qdrant Cloud Inference▲22
Unify embeddings and vector search across modalities
2025 · qdrant.tech · its alternatives →
20
Render abstract syntax trees using React▲36
render abstract syntax trees with react. Contribute to clayrisser/react-ast development by creating an account on GitHub.
2019 · github.com · its alternatives →
21SA
Spart – A Rust library for fast spatial search with Python bindings▲31
Hi everyone, I've made an open-source library for fast spatial search in Rust. It's called Spart, and it currently provides the following features: - Five tree implementations: Quadtree, Octree, Kd-tree, R-tree, and R*-tree - Python bindings (`pyspart` on PyPI) - Fast k-nearest neighbor (kNN) and radius search - Bulk data loading for efficient tree construction Project's GitHub repo: https://github.com/habedi/spart
2025 · its alternatives →
22
Code Indexer Loop▲28
This is a project I recently worked on at Definitive. We’re hoping to make it easier to semantically query (changing) source code files. We’d love to see people use it as a building block. If you have any suggestions please leave a comment or open a GitHub issue!
2023 · github.com · its alternatives →
23
Auto-indexing key-value store▲14
Language model search engine built on a vector database and an anything key/value store. - kreeben/resin
2017 · github.com · its alternatives →
24
Open-Source Codebase Index with Tree-sitter▲6
Hi HN, I made a data lineage tool for AI data pipeline, as a companion to open source ETL framework cocoindex. After months in private beta (and lots of love from early users), we’re excited to officially launch it today. It offers: - Before/after of the data are available at every transformation node - Every output field can be traced back to the exact set of input fields and operations that created it - Lineage is first-class - Zero pipeline data retention, connecting seamlessly to on-prem CocoIndex server This tool is free, and you can get start by running cocoindex server -ci…
2025 · cocoindex.io · its alternatives →

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