MemPalace review

The best-benchmarked open-source AI memory system. And it's free.

Updated Nov 1, 2026. Review written Nov 1, 2026 from the project's own sources; usage data refreshed every Monday.

60.2kGitHub stars
+526new stars, week of Oct 25
15.1kdownloads a week, +17% vs 4-week avg
#15in RAG, data and memory this week

MemPalace at a glance

Category: RAG, data and memory
Website: mempalaceofficial.com

Is MemPalace growing? Usage data

In the week of Oct 25–31, 2026, MemPalace ranked #133 on the Devtoolwatch Board and #15 in RAG, data and memory, with a momentum score of 56 out of 100. Its main package had 15.1k downloads that week, +17% against its own 4-week average.

New GitHub stars per week for the last 12 weeks, from GitHub's stargazer history (today's stargazers by the week they starred).

Show the weekly numbers

New GitHub stars per week for MemPalace
Week of	New stars
Aug 9, 2026	221
Aug 16, 2026	217
Aug 23, 2026	211
Aug 30, 2026	165
Sep 6, 2026	199
Sep 13, 2026	181
Sep 20, 2026	169
Sep 27, 2026	148
Oct 4, 2026	155
Oct 11, 2026	155
Oct 18, 2026	145
Oct 25, 2026	526

The Board ranks tools by four signals each week: new stars, new stars for the repo's size, added downloads and download growth beyond the market. How the ranking works.

MemPalace alternatives

Other RAG, data and memory tools on the Board in the week of Oct 25–31, 2026, by momentum:

RAG, data and memory ranked by momentum, the week of Oct 25–31, 2026
Rank	Tool	Stars	Downloads/wk
#1	XERJXERJ is a local-first search engine and MCP server for AI agents, packaged as one Rust binary with an Elasticsearch-compatible API.	17.9k	–
#2	MemvidMemvid is a single-file memory layer for AI agents that packages data, embeddings, search indexes, and metadata into one portable .mv2 file.	17.3k	–
#3	LEANNLEANN is a Python vector database and RAG library that recomputes embeddings on demand to keep indexes small on personal devices.	13.7k	–
#4	GraphifyGraphify is an AI coding assistant skill that turns a codebase, with its docs, PDFs, images and videos, into a queryable knowledge graph.	140k	480.7k
#5	MarkItDownMarkItDown is a lightweight Python utility from Microsoft that converts PDFs, Office documents, images, audio and other files to…	193.2k	4.7M
#6	FirecrawlFirecrawl is an API and open source project to search, scrape, crawl, and interact with web pages, returning LLM-ready markdown or JSON…	197.4k	2.9M

All RAG, data and memory tools, ranked

MemPalace FAQ

How popular is MemPalace?

MemPalace has 60.2k GitHub stars as of Nov 1, 2026. It gained 526 new stars in the week of Oct 25–31, 2026, against a 12-week average of 208 a week. Its main package had 15.1k downloads that week, +17% against its own 4-week average. That made it #15 among RAG, data and memory tools on the Devtoolwatch Board.

What are the best alternatives to MemPalace?

Other RAG, data and memory tools on the Devtoolwatch Board in the week of Oct 25–31, 2026, by momentum: XERJ (#1), Memvid (#2), LEANN (#3), Graphify (#4), MarkItDown (#5). The alternatives table above has their numbers.

Sources

Devtoolwatch Board, the week of Oct 25–31, 2026

MemPalace README badge

Maintainers can show the tool's weekly Board rank in their README:

[![Devtoolwatch](https://index.devtoolwatch.com/badge/mempalace-mempalace.svg)](https://index.devtoolwatch.com/tools/mempalace-mempalace/)

How this page is made: Devtoolwatch writes each review from the project's README, releases, package metadata and website, with an AI model, then checks every claim against the source it cites and drops what the sources don't support. The numbers come from Devtoolwatch's daily GitHub snapshots, GitHub's stargazer history, and the npm and PyPI download APIs. Spotted an error? Email [email protected].