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PrivateBin VS Underlayer

Compare PrivateBin VS Underlayer and see what are their differences

PrivateBin

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

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
Underlayer

Build courses by API, drop them into your product with one iframe, and get told who finished. No portal, no learner accounts, priced per course view.

Rating
0 reviews
Pricing
Freemium $149 / Monthly
Alternatives Is it good?
FlexiQuiz
FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, PrivateBin seems to be more popular. It has been mentioned 35 times since March 2021.

social mentions
35 vs 0
Design Playground popularity
100% vs 0%
alternatives listed
97 vs 2

Base details

Website, pricing, platforms and company facts side by side.

PrivateBin
Underlayer
Website privatebin.info underlayerhq.com
Pricing
Open source
Freemium $149 / Monthly Official pricing
Company — Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in
Design Playground JavaScript Links JavaScript Tools +1
Education E-learning Education / E-Learning

About PrivateBin and Underlayer

In their own words, as submitted to SaaSHub.

PrivateBin
Underlayer

No description of PrivateBin yet.

Underlayer is headless, API-first training for SaaS products. Instead of sending your users to a separate LMS portal, you generate a course, embed it where they already work, and get every completion sent back to your own systems. How it works Create a course. Generate one from a doc or a prompt...

Read more about Underlayer

Features and specs

What each product offers, as listed by its team.

PrivateBin 5 features
Underlayer 0 features
  • End-to-End Encryption
    PrivateBin offers end-to-end encryption ensuring that the data is encrypted on the client-side and can only be decrypted by the recipient, enhancing security and privacy.
  • No Data Retention
    Servers running PrivateBin do not retain any data, as all messages are deleted after the predefined expiration time or when manually deleted by the user.
  • Open Source
    Being an open-source application, PrivateBin allows anyone to inspect, modify, and improve the code, fostering transparency and trust in its security measures.
  • Self-Hosting
    Users have the option to self-host PrivateBin on their own servers, giving them complete control over their data and environment.
  • No Account Required
    PrivateBin doesn’t require users to create an account or provide personal information, making it a convenient, hassle-free option for quick and anonymous sharing.

Possible disadvantages

  • Limited Collaboration
    Unlike some other tools, PrivateBin does not offer collaborative editing or live updates, which might limit its usability for team projects or dynamic document management.
  • Self-Hosting Complexity
    While self-hosting provides control, it also requires a certain level of technical expertise to set up, maintain, and secure the PrivateBin instance.
  • Dependency on Browser
    Since PrivateBin is primarily accessed through a web browser, its functionality is dependent on browser performance, compatibility, and security.
  • Limited Features
    PrivateBin focuses on simplicity and security, which means it lacks some advanced features found in other sharing or note-taking applications, such as rich text formatting or file attachments.
  • Expiration Constraints
    The expiration feature, while enhancing security, could be a downside for users needing persistent or long-term storage solutions.

No features have been listed yet.

Analysis

An editorial look at what each product does well and who it suits.

PrivateBin
Underlayer

Overall verdict

  • PrivateBin is generally considered a good tool for securely sharing information. Its focus on privacy and data protection, thanks to end-to-end encryption and its open-source nature, makes it trustworthy for users concerned about data security. Additionally, its user-friendly interface makes it accessible even for those unfamiliar with privacy-focused technologies.

Why this product is good

  • PrivateBin is a popular choice for those looking to share information securely and privately. It is an open-source, web-based application that allows users to paste texts or files, which are encrypted client-side before being stored on the server. This means that server operators cannot view the content of the pastes. Additionally, it offers various features like setting expiration times for pastes, enabling password protection, and generating burn-after-read links, enhancing its privacy and security aspects.

Recommended for

    PrivateBin is recommended for individuals and organizations who need to share sensitive data or information privately. This includes journalists, activists, developers, or anyone working in environments where data confidentiality is critical. It's also useful for anyone who values privacy and wants to ensure that shared information does not get accessed by unauthorized parties.

No analysis of Underlayer yet.

Videos

Walkthroughs and reviews on video.

PrivateBin 0 videos + Add
Underlayer 1 video + Add

No PrivateBin videos yet. You could help us improve this page by suggesting one.

Underlayer demo

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
PrivateBin
Underlayer
100% 100%
Design Playground
0% 0%
0% 0%
Education
100% 100%
100% 100%
JavaScript
0% 0%
0% 0%
E-learning
100% 100%

Questions & Answers

As answered by people managing PrivateBin and Underlayer.

Who are some of the biggest customers of your product?

Underlayer's answer:

it's pre-launching

What makes your product unique?

Underlayer's answer:

Underlayer is training with no portal. You build a course by API, by MCP, or in the visual builder, and add it to your product with one iframe. Then signed webhooks tell your systems who finished. Learners never create an account or leave your app, and the player uses your theme, so it looks like part of your product. We charge per course view, not per seat, and every price and overage rate is published.

Why should a person choose your product over its competitors?

Underlayer's answer:

Most course tools, like Coassemble, Trainn and LearningStudioAI, assume training happens on their own site: learners sign up, log in and get enrolled, and you pay per seat. Underlayer takes the opposite approach:

No learner accounts. You pass in your own user IDs and we track progress against them. Built for developers. A full REST API covers every resource, and an MCP server lets AI agents create and edit courses. Results in your own tools. Signed webhooks send completions to your CRM, your product or your data warehouse. SCORM 1.2 and 2004 export for customers who still need to load courses into an LMS. Public pricing. Plans start at $149/month for 25,000 course views, with unlimited learners and no sales call required.

How would you describe the primary audience of your product?

Underlayer's answer:

SaaS product, customer success and engineering teams who want onboarding, product education or compliance training inside their own app. It also suits platforms that train other people's users, like partner networks, marketplaces and field-ops tools, where a separate LMS login gets in the way.

What's the story behind your product?

Underlayer's answer:

Every company putting training in front of its users hit the same wall: the LMS wanted to own the learner. That meant a separate portal, a second login and a per-seat bill for people who never opened a course. We built Underlayer as the layer underneath instead. You keep the product and the user relationship. We handle building the course, playing it and tracking progress, and we stay out of the way.

Which are the primary technologies used for building your product?

Underlayer's answer:

Next.js 16 (App Router) with React 19 and TypeScript, Tailwind CSS v4, and Supabase (Postgres with row-level security, Auth and Storage). Claude from Anthropic generates courses with AI. Stripe handles billing and Resend sends email. There is also a remote MCP server with OAuth 2.1 for AI-agent access.

User comments

Share your experience with using PrivateBin and Underlayer. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

PrivateBin 35 mentions
Underlayer 0 mentions
  • Show HN: Flashpaper – Self-destructing secret sharing with no database
    How does this compare with other pastebins like privatebin? https://privatebin.info/. - Source: Hacker News / 3 months ago
  • I Audited the Privacy of Popular Free Dev Tools, the Results Are Terrifying
    Just implemented e2e encryption for plan, annotation, and diff sharing of coding agents (share with your colleagues, etc), modeled after https://privatebin.info/ https://github.com/backnotprop/plannotator/pull/203. - Source: Hacker News / 8 months ago
  • We build Dropbud, place to upload files without uploading
    Is this basically https://privatebin.info/. - Source: Hacker News / over 1 year ago

View more

Tracking Underlayer since Sep 2026.

Alternatives to PrivateBin and Underlayer

When comparing PrivateBin and Underlayer, you can also consider the following products.

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