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pguso/rag-from-scratch

Demystify RAG by building it from scratch. Local LLMs, no black boxes - real understanding of embeddings, vector search, retrieval, and context-augmented generation.

#Learning resources
Visit GitHub
JavaScript
1.7k
214
1 contributors
MIT License
AchievementsView all →
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Momentum

How fast pguso/rag-from-scratch is gaining stars, and where it lands on Trendshift and GitHub Trending

Activity and trending

Stars, forks and merged pull requests each day or month, lined up with the repository's rank on Trendshift Trending

Sep 5 – Nov 4, 2026

Stars +39 in 61 days

0123
3

Forks +12 in 61 days

012
2

Merged PRs 0 in 61 days

01

Trendshift Trendingwhere the repository ranked each day it made the top 25

Not in the Trendshift top 25 in this period

Sep 5Sep 13Sep 21Sep 29Oct 7Oct 15Oct 23Oct 31
The left and right arrow keys step from day to day; Home and End go to the first and the last

Stars, forks, merged pull requests and Trendshift Trending rank, by day
DayStars gainedForks gainedMerged PRs
Sat, Sep 5, 2026+1+00
Sun, Sep 6, 2026+1+00
Mon, Sep 7, 2026+1+00
Tue, Sep 8, 2026+3+00
Wed, Sep 9, 2026+0+10
Thu, Sep 10, 2026+0+00
Fri, Sep 11, 2026+1+00
Sat, Sep 12, 2026+0+00
Sun, Sep 13, 2026+1+00
Mon, Sep 14, 2026+1+00
Tue, Sep 15, 2026+2+10
Wed, Sep 16, 2026+0+00
Thu, Sep 17, 2026+1+00
Fri, Sep 18, 2026+1+00
Sat, Sep 19, 2026+1+00
Sun, Sep 20, 2026+0+00
Mon, Sep 21, 2026+0+00
Tue, Sep 22, 2026+1+10
Wed, Sep 23, 2026+0+00
Thu, Sep 24, 2026+0+00
Fri, Sep 25, 2026+0+00
Sat, Sep 26, 2026+0+00
Sun, Sep 27, 2026+0+00
Mon, Sep 28, 2026+0+00
Tue, Sep 29, 2026+1+00
Wed, Sep 30, 2026+1+00
Thu, Oct 1, 2026+0+10
Fri, Oct 2, 2026+0+10
Sat, Oct 3, 2026+1+00
Sun, Oct 4, 2026+2+00
Mon, Oct 5, 2026+0+00
Tue, Oct 6, 2026+2+00
Wed, Oct 7, 2026+1+00
Thu, Oct 8, 2026+1+00
Fri, Oct 9, 2026+0+00
Sat, Oct 10, 2026+1+10
Sun, Oct 11, 2026+0+00
Mon, Oct 12, 2026+0+00
Tue, Oct 13, 2026+1+00
Wed, Oct 14, 2026+1+10
Thu, Oct 15, 2026+0+10
Fri, Oct 16, 2026+0+00
Sat, Oct 17, 2026+1+20
Sun, Oct 18, 2026+2+10
Mon, Oct 19, 2026+1+10
Tue, Oct 20, 2026+0+00
Wed, Oct 21, 2026+0+00
Thu, Oct 22, 2026+0+00
Fri, Oct 23, 2026+1+00
Sat, Oct 24, 2026+0+00
Sun, Oct 25, 2026+0+00
Mon, Oct 26, 2026+1+00
Tue, Oct 27, 2026+1+00
Wed, Oct 28, 2026+0+00
Thu, Oct 29, 2026+2+00
Fri, Oct 30, 2026+1+00
Sat, Oct 31, 2026+0+00
Sun, Nov 1, 2026+1+00
Mon, Nov 2, 2026+0+00
Tue, Nov 3, 2026+1+00
Wed, Nov 4, 2026+0+00
Total+39+120
  • 1#1 on the list
  • 7Rank that day
  • Not trending

    • Mentions and achievements

    Where people are talking about pguso/rag-from-scratch, and every badge it has earned
    1. Oct 12 posts

      • 大多数 RAG 教程要么跳过中间步骤，要么直接调云端 API 让你看不见过程；RAG from Scratch 走的是另一条路。 它把整条链路拆成十来个小实验，每一步都用本地模型跑，没有黑盒。 从文本分块、向量化、检索到最终生成，代码都摆在面前，函数级别带解释。 GitHub：

        Read full on X, posted by @laogeai

        @laogeai · x.com

      • 大多数 RAG 教程要么跳过中间步骤，要么直接调云端 API 让你看不见过程；RAG from Scratch 走的是另一条路。 它把整条链路拆成十来个小实验，每一步都用本地模型跑，没有黑盒。 从文本分块、向量化、检索到最终生成，代码都摆在面前，函数级别带解释。 GitHub： 还覆盖了混合检索、多查询检索、查询重写这些进阶策略，想深入的接着往后看就行。 想从底层搞清楚 RAG…

        Read full on X, posted by @Gas1688

        @Gas1688 · x.com

    2. 1 month earlier
    3. Aug 211 post

      • RAG tutorials often hide the important parts behind a framework. This repo builds them from scratch. RAG from Scratch is a step-by-step JavaScript learning repository for developers who want to…

        Read full on X, posted by @DanKornas

        @DanKornas · x.com

    4. 7 days earlier
    5. Aug 141 post

      • 想搞懂 RAG 到底怎么回事，网上的教程不是跳步骤就是直接调云端 API，中间过程看不见。 RAG from Scratch 把整条链路拆成十来个小实验，每一步都用本地模型跑，没有黑盒。 从文本分块、向量化、检索到最终生成，代码都摆在面前，函数级别带解释。 GitHub： 还覆盖了混合检索、多查询检索、查询重写这些进阶策略，想深入的接着往后看就行。 想从底层搞清楚 RAG…

        Read full on X, posted by @GitHub_Daily

        @GitHub_Daily · x.com

    6. 3 months earlier
    7. May 221 post

      • Builds RAG systems from scratch with local LLMs

        Read full on X, posted by @tom_doerr

        @tom_doerr · x.com

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