Software Alternatives, Accelerators & Startups

Obsidian.md VS secure-notes

Compare Obsidian.md VS secure-notes and see what are their differences

Obsidian.md logo Obsidian.md

A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.

secure-notes logo secure-notes

One-time open-source E2EE notes. AES-256-GCM browser-side encryption; server response sign; pub-key pinning; accident burn protection; PoW captcha; RAM-only; written in Rust; zero-knowledge relay. No account required for creating up to 32Kb notes.
  • Obsidian.md Landing page
    Landing page //
    2023-09-01
  • secure-notes Home page
    Home page //
    2026-05-28
  • secure-notes How it works
    How it works //
    2026-05-28
  • secure-notes API Configuration
    API Configuration //
    2026-05-28
  • secure-notes Notice that an external API will be used
    Notice that an external API will be used //
    2026-05-28
  • secure-notes Notice that the server key has changed
    Notice that the server key has changed //
    2026-05-28
  • secure-notes After note is created
    After note is created //
    2026-05-28
  • secure-notes Checking the server's public key when opening a note
    Checking the server's public key when opening a note //
    2026-05-28
  • secure-notes Opening the note
    Opening the note //
    2026-05-28

SecNote โ€” open-source E2EE read-once notes

SecNote is an open-source, zero-knowledge relay for sharing sensitive notes that should be opened only once. Notes are encrypted in the browser with AES-256-GCM before they leave the client, and the decryption key stays in the URL fragment so the server never receives it.

The backend stores only ciphertext in RAM, never writes note contents to disk, and atomically destroys each note after the first successful read or when it expires. No account is required.

Key features

  • End-to-end encrypted notes with browser-side AES-256-GCM
  • Read-once / burn-after-read delivery
  • Zero-knowledge server that stores only ciphertext
  • RAM-only storage with no persistent note database
  • Accidental burn protection using a key-derived view token
  • Proof-of-work anti-spam protection instead of traditional CAPTCHA
  • Signed server responses with Ed25519 verification
  • Public-key pinning / TOFU support for stronger trust boundaries
  • No accounts, no login, no tracking workflow
  • Self-hostable Rust backend
  • Offline-capable static frontend with no CDN dependency
  • Tor Browser-friendly design

SecNote is built for developers, security-conscious teams, journalists, administrators, and privacy-focused users who need a minimal way to exchange short secrets without relying on accounts, persistent storage, or server-side plaintext handling.

secure-notes

Pricing URL
-
$ Details
free
Platforms
Web
Release Date
2026 May
Startup details
State
Dubai
City
Dubai
Founder(s)
PWN-ALL
Employees
50 - 99

Obsidian.md features and specs

  • Local-first
    Obsidian stores your notes locally on your device, giving you full control over your data and enhancing privacy.
  • Markdown Support
    Obsidian uses Markdown, making it easy to format text and compatible with many other text editors and tools.
  • Bidirectional Linking
    You can create bidirectional links between notes, which helps in building a knowledge graph and navigating related information more easily.
  • Customizability
    Obsidian is highly customizable with community plugins, themes, and various settings to fit different workflows.
  • Graph View
    Provides a visual graph view of your notes and their connections, aiding in understanding relationships and discovering insights.
  • Offline Access
    Since the notes are stored locally, you can access and edit them without an internet connection.

Possible disadvantages of Obsidian.md

  • Learning Curve
    Obsidian can be complex and overwhelming for beginners due to its extensive features and customizable nature.
  • Sync Limitations
    While local-first is great for privacy, it requires additional steps or third-party solutions for syncing across devices.
  • No True Real-time Collaboration
    Obsidian lacks native real-time collaboration features, making it less suitable for collaborative work compared to cloud-based solutions.
  • Limited Mobile Features
    The mobile version of Obsidian, while functional, is not as robust as the desktop application, potentially hindering productivity on the go.
  • Dependence on Plugins
    Many advanced features require the use of third-party plugins, which could lead to compatibility issues and reliance on community support.
  • Performance on Large Vaults
    Performance might degrade with a very large number of notes or complex graphs, impacting usability.

secure-notes features and specs

  • Rust Implementation
    The backend was written entirely in Rust
  • E2E encryption
    Messages are encrypted on the client side
  • Self-Hostable
    Both backend and frontend
  • AES-256 Encryption
    Using standard browser features without third-party libraries
  • Quantum Resistance
    128-bit Quantum-secure encryption
  • Open Source
    Both backend and frontend is available

Analysis of Obsidian.md

Overall verdict

  • Overall, Obsidian.md is an excellent tool for users looking for a versatile and powerful note-taking application. Its unique features such as backlinking, markdown support, and robust customization options make it a favorite among knowledge management enthusiasts.

Why this product is good

  • Obsidian.md is considered good by many users because it is a powerful knowledge management and note-taking application that leverages Markdown for document formatting. It allows for bi-directional linking between notes, which helps in creating a network of interconnected ideas, often described as a 'second brain.' Its ability to support plugins, themes, and robust graph visualization also adds to its appeal. Additionally, it stores notes locally, ensuring privacy and data ownership, while being cross-platform compatible across Windows, macOS, and Linux.

Recommended for

  • Knowledge workers who need a powerful tool to organize and connect their thoughts.
  • Students who are looking to create a structured and visually interconnected note system.
  • Writers and researchers who benefit from linking related ideas and maintaining detailed notes.
  • Tech-savvy users or developers who appreciate the local storage and open ecosystem for plugins and customization.

Analysis of secure-notes

Overall verdict

  • Secure-notes (pwn-all.github.io) appears to be a niche or lesser-known tool, and without verified, up-to-date information about its security practices, ownership, or track record, it cannot be confidently endorsed as 'good' for storing sensitive information. Users should exercise caution and verify its legitimacy, encryption standards, and privacy policy before use.

Why this product is good

  • Claims to offer note-taking with a security focus, which may appeal to privacy-conscious users
  • Potentially lightweight or simple to use if hosted as a static GitHub Pages site
  • GitHub Pages hosting can imply transparency if the source code is open for review

Recommended for

  • Users who first verify the source code and security claims independently
  • Casual note-taking where no sensitive personal or financial data is involved
  • Developers or technically savvy users comfortable auditing open-source code before trusting it with data

Obsidian.md videos

OBSIDIAN: Getting Started, Facts & Pricing

secure-notes videos

How to use secure-notes

Category Popularity

0-100% (relative to Obsidian.md and secure-notes)
Knowledge Management
100 100%
0% 0
Communication
0 0%
100% 100
Note Taking
100 100%
0% 0
Encrypted Communication
0 0%
100% 100

Questions & Answers

As answered by people managing Obsidian.md and secure-notes.

How would you describe the primary audience of your product?

secure-notes's answer:

Everyone who take a care about secure transfer of secrets

Which are the primary technologies used for building your product?

secure-notes's answer:

Rust, Claude Cyber

What makes your product unique?

secure-notes's answer:

Server response sign; pub-key pinning; accident burn protection; PoW captcha; RAM-only; option for self-hosting frontend and back-end

Why should a person choose your product over its competitors?

secure-notes's answer:

1-click self-hostable frontend with 0 hustle on choice any public instance

Who are some of the biggest customers of your product?

secure-notes's answer:

A Chrome extension that uses secure-notes instances has been adopted by dozens of organizations around the world

What's the story behind your product?

secure-notes's answer:

SecNote was built for one simple reason: sharing a secret should not require trusting the server.

User comments

Share your experience with using Obsidian.md and secure-notes. For example, how are they different and which one is better?
Log in or Post with

Reviews

These are some of the external sources and on-site user reviews we've used to compare Obsidian.md and secure-notes

Obsidian.md Reviews

  1. The kind of software that may change your life

    Perhaps you know someone who swears by Obsidian, it may seem like a cult of overly devoted people for how passionate they are, but it's not without reason

    I've been using Obsidian for over 3 years, at a point in my life when I felt I had to handle too much information and I felt like grasping water not being able to remember everything I wanted, language learning, programming, accounting, university, daily tasks. A friend recommended it to me next to Notion (of which he is a passionate cultist priest) and I reluctantly picked it and fell in love almost immediately.

    Obsidian seems very simple, like a notepad with folder interface, similar to Sublime Text, but the ability to link files together in a Wiki style allows you to organize ideas in any way you want, one file may lead to a dozen or more ideas that are related

    If you want to do something specific, Obsidian has a plethora of community created plugins that expand the functionality, in my case, I use obsidian to organize my classes both as a teacher and as a student, using local databases, calendars, dictionaries, slides, vector graphic drawings, excel-like tables, Anki connection, podcasts, and more

    ๐Ÿ Competitors: Notion, Evernote
    ๐Ÿ‘ Pros:    Awesome community|Custom plugins|Local hosting|Beautiful themes|Highly customizable|Cloud storage|Becomes more useful over time|Markdown support
    ๐Ÿ‘Ž Cons:    Seems complicated/complex at first|Takes time to set up your personal workspace|Overwhelming for first time user
  2. Stan
    ยท Founder at SaaSHub ยท
    My personal knowledge-base of choice

    I've been using Obsidian for more than a year. It's been great. I think it offer a great balance of control, flexibility and extensibility. What is more, you own your own data, that's been a must-have feature for me. I just can't imagine putting all my knowledge into something that I don't have control over.

    I think two of the most popular alternatives that people consider are Logseq and Roam Research. Although Logseq is a bit different, it's considered compatible with Obsidian. Supposedly, you can use them with a shared database (files. Both use simple text files for storage). I tried that once, a few months ago. It worked, yet it messed up a bit my Obsidian files ยฏ_(ใƒ„)_/ยฏ.

    ๐Ÿ Competitors: Logseq, Roam Research

The 6 best note-taking apps in 2024
One thing to note: Notion bills itself as an Evernote competitor for personal users. It can beโ€”but it's too much for most people, and its offline functionality isn't the best. If you love the idea of Notion, go right ahead and try the free Personal Plan, but for me, it's really best as a team notes app or an AI-powered notes app. Something like Obsidian (which we'll look at...
Source: zapier.com
The best note-taking apps for collecting your thoughts and data
This app is the kind of thing that, if youโ€™re into it, will have you exploring its various ins, outs, and add-ons for days and weeks on end. Obsidian uses the Markdown format for its notes (which means they can be used on a variety of other apps). Your notes and other media are kept locally in a Vault (in other words, a main folder). There are ways to sync between devices...
The 5 Best Open Source Miro Alternatives in 2024
However, it's important to note that Obsidian's whiteboard functionality is not as robust as dedicated collaboration tools. While it lacks real-time basic collaboration features, Obsidian compensates with its vibrant plugin ecosystem, empowering users to customize their experience.
Source: affine.pro
The best encrypted note taking apps
For a consumer coming from Evernote, Notion, OneNote, or a similar product, we would advise trying Obsidian along another product on this list as it has the largest learning curve. However, if you are an expert with markdown, experts, linking, and graph views, Obsidian could be an excellent choice. Like many other configuration options, Obsidian leaves end-to-end encryption...
Source: www.skiff.com
Supercharge Your Productivity: Three Recommended Tools for Thought
One of my AP Productivity: Cohort mentors has a powerful system pairing Obsidian with OmniFocus. In OmniFocus, he builds his project and task structures, and in Obsidian he develops and organizes the project support materials as well as other relevant information. Because itโ€™s easy to link to an Obsidian note or an OmniFocus project, he can seamlessly navigate back and forth...
Source: medium.com

secure-notes Reviews

We have no reviews of secure-notes yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Obsidian.md seems to be more popular. It has been mentiond 1520 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Obsidian.md mentions (1520)

  • Bringing Notes, WeChat Reading, and Zhihu into Obsidian: My LLM-Wiki Knowledge Hub
    Install Obsidian: Download the client from obsidian.md and create a local Vault โ€” just a local folder. - Source: dev.to / 24 days ago
  • Ask HN: New clean macOS install. Must-have apps? Best browser?
    Obsidian (https://obsidian.md/) Honestly its not huge and most are probably obvious, but those are what I immediately install on my machines. - Source: Hacker News / 27 days ago
  • Turning Kiro Into a Leadership Coach With Meeting Transcripts
    A place to store the feedback - I keep mine in an Obsidian vault, organised by type (interviewing, facilitation) and date. This makes trend tracking trivial. - Source: dev.to / about 1 month ago
  • Best Markdown Editors for Developers
    Option 2: Dedicated markdown app.Typora, Obsidian, or similar. Better editing experience, but now you're context-switching between your code editor and your docs editor. Copy-pasting paths, losing mental context, duplicating effort. - Source: dev.to / about 2 months ago
  • How to build a second brain with Obsidian and Claude Code (step by step)
    Obsidian is the storage. A desktop app that opens any folder of markdown files and adds links, search, and a graph view on top. Your files stay on your disk. No cloud unless you turn it on, no proprietary database, no export step. If you want your notes back, you already have them. - Source: dev.to / about 2 months ago
View more

secure-notes mentions (0)

We have not tracked any mentions of secure-notes yet. Tracking of secure-notes recommendations started around May 2026.

What are some alternatives?

When comparing Obsidian.md and secure-notes, you can also consider the following products

Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.

Privnote - Send notes that will self-destruct after being read

Logseq - Logseq is a local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base.

Secnote.co - Send encrypted, self-destructing notes instantly with Secnote. Share confidential messages that automatically delete after being read. Trusted, private, and easy-to-use.

Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.

PrivateBin - PrivateBin is a minimalist, open source online pastebin where the server has zero knowledge of...