1
SigmaNote
sigmanote.appSame kind of website
SigmaNote organizes PDFs, voice notes, webpages, and videos into a searchable knowledge base for AI-assisted learning and work.
Alternatives
The Best Mem Alternatives in 2026
11 alternatives1 free · 2 open source
Looking for something like Mem? Here are 11 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 2 are open source.
Mem organizes meeting notes, projects, and knowledge bases for teams with searchable AI features.
Top picks at a glance
First suggestionSigmaNoteSigmaNote organizes PDFs, voice notes, webpages, and videos…Free or freemium optionTolariaTolaria organizes notes as Markdown files and describes…Open source optionTolariaManage Markdown knowledge bases with Tolaria, a desktop app…Another optionEmanoteTurn plain-text notes into structured websites such as…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | SigmaNote | — | Not stated | Web |
| 2 | Emanote | — | Not stated | — |
| 3 | Slite | — | Not stated | Web |
| 4 | Trilium | — | Not stated | Web |
| 5 | Tolaria | — | Yes | — |
| 6 | Open Notebook | — | Not stated | Web |
| 7 | Tolaria | Free | Not stated | Web |
| 8 | Butterfly | — | Not stated | Web |
| 9 | Recall | — | Not stated | Web |
| 10 | Silicon | — | Not stated | — |
All Mem alternatives
2
Emanote
github.com/srid/emanoteTurn plain-text notes into structured websites such as blogs, wikis, notebooks, and knowledge bases with Emanote.
3
Slite
slite.comSame kind of website
Slite provides a team knowledge base that stays synced with connected tools and is verified by the team.
4
Trilium
triliumnotes.orgTrilium Notes is an open-source app for taking notes and organizing a personal knowledge base locally or through synchronization.
5
Open source
Manage Markdown knowledge bases with Tolaria, a desktop app described by its project page.
6
Open Notebook
open-notebook.aiOpen Notebook provides a private workspace for learning, research, and organizing knowledge.
7
Free
Tolaria organizes notes as Markdown files and describes itself as a second-brain app.
8
Butterfly
butterfly.linwood.devLinwood Butterfly provides an endless workspace for handwriting, sketching, annotating, taking notes, and organizing ideas.
9
Recall
recall.itRecall saves and summarizes articles, videos, podcasts, PDFs, and notes in a personal AI knowledge base.
10
Silicon
github.com/cu/siliconSilicon Notes is a web-based personal knowledge base described as having few frills.
11
Open source
Trilium Notes supports building a personal knowledge base, as described by the project page.
No alternatives match this filter.
Alternatives to similar tools
Emanote13 alternativesRecall15 alternativesOpen Notebook8 alternativesTolaria20 alternativesSilicon22 alternativesTrilium24 alternatives
TopicNotes & Knowledge Management · 92 sites Best-of listBest Free Note-Taking Apps for Offline Use ListingMem details
What is the best alternative to Mem?
Based on features, tags and platforms, the closest alternatives to Mem are SigmaNote, Emanote, and Slite.
Is there a free alternative to Mem?
Yes. Tolaria is free or offer a free plan.
Are there open-source alternatives to Mem?
Yes: Tolaria and Trilium.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative