Perkoon vs Shiru Notes

Side-by-side comparison to help you choose the right product.

Send files directly to anyone for free with unlimited peer-to-peer transfers.

Last updated: March 4, 2026

Shiru Notes is a secure, minimalist app designed for capturing your thoughts effortlessly and privately.

Last updated: February 26, 2026

Visual Comparison

Perkoon

Perkoon screenshot

Shiru Notes

Shiru Notes screenshot

Feature Comparison

Perkoon

Truly Free Peer-to-Peer (P2P) Transfers

Perkoon's core feature is its unlimited, free P2P file transfer. When both sender and recipient are online, files are beamed directly from one browser to another without ever passing through Perkoon's servers. This means there are no file size limits, no mandatory sign-ups, and absolute privacy for your data. Because this method costs Perkoon virtually nothing to facilitate, they can offer it as a free service forever, with no hidden catches or data monetization.

Honest Encrypted Cloud Storage

For sending files to someone who is offline, Perkoon provides encrypted cloud storage as a paid feature. This approach is transparent: the free P2P model covers online transfers, while the paid cloud storage honestly covers the cost of running and maintaining secure servers. Your files are encrypted on their servers, providing a secure holding area until your recipient is ready to download, without pretense of it being free.

Native AI and Automation Integration

Perkoon is designed for the modern workflow by offering built-in tools for automation and AI agents. Through features like window.__perkoon, AI assistants and scripts can interact with the service programmatically without resorting to inefficient screen-scraping techniques. This makes it possible to integrate file sending and receiving into automated pipelines, agentic workflows, and custom tools seamlessly.

Simple CLI and Browser Tools

Beyond the web interface, Perkoon offers a Command Line Interface (CLI) tool, providing power users and developers with a fast, scriptable way to transfer files. The web service itself works optimally on modern browsers like Chrome, Edge, and Brave, with clear communication about any limitations on Firefox and Safari, ensuring a reliable experience across platforms.

Shiru Notes

Distraction-Free Interface

Shiru Notes offers a minimal interface that encourages focus on your thoughts, eliminating unnecessary features that can divert attention. This design philosophy ensures that users can write freely without the clutter of complex menus or distracting notifications, making it easier to tap into creativity.

Automatic Saving

Every word you type in Shiru Notes is automatically saved in real-time. This feature guarantees that you never lose your thoughts, as the application captures changes as they happen, allowing for a seamless writing experience. Users can write with confidence, knowing their ideas are securely stored.

Top-Notch Encryption

Privacy is paramount with Shiru Notes. The application employs advanced encryption standards to protect your notes, ensuring that only you have access to your content. This focus on security allows users to write freely without fear of unauthorized access or data breaches.

Intuitive Writing Experience

Shiru Notes is designed to facilitate a natural flow of ideas. The blank page serves as a canvas for your thoughts, promoting intentional writing. This intuitive editor enhances creativity and encourages users to express themselves without the constraints of formatting or structure.

Use Cases

Perkoon

Sending Large Project Files to Clients

Freelancers and agencies can use Perkoon's free P2P transfer to send large video edits, design mockups, or code repositories to clients instantly. There's no need to compress files or upgrade to a "pro" plan just to bypass a size limit. If the client is unavailable, the secure cloud hold ensures the file waits for them.

Private Document Exchange

For lawyers, journalists, or anyone handling sensitive information, Perkoon's P2P mode is ideal. Since files travel directly between browsers and are never stored on an intermediary server, it provides a much higher degree of privacy and security for confidential documents compared to traditional cloud transfer services.

Automating Backup and Sync Tasks

Developers and IT professionals can leverage Perkoon's CLI and native automation APIs to build custom scripts. For example, you can automatically back up log files to a colleague's machine or sync generated reports directly from a server process to a team storage bucket, all without manual intervention.

AI Agent File Operations

When an AI agent needs to send a generated image, document, or dataset to a user, it can use Perkoon's built-in window.__perkoon interface directly. This allows AI assistants to perform file transfer tasks reliably as part of a larger automated workflow, instead of struggling with simulated clicks on a website designed for humans.

Shiru Notes

Student Note-Taking

Students can utilize Shiru Notes to capture lecture notes, brainstorm ideas for essays, or jot down study reminders. The distraction-free environment allows them to focus solely on their learning, making it an ideal tool for academic success.

Professional Planning

Professionals can use Shiru Notes for meeting notes, project brainstorming, or strategic planning. The secure and private nature of the application ensures that sensitive information remains confidential while enabling effective organization of thoughts and ideas.

Personal Journaling

For individuals looking to document their daily reflections or personal growth, Shiru Notes provides a safe space for journaling. Users can freely express their thoughts and feelings without the concern of sharing them publicly, fostering a deeper connection with themselves.

Creative Writing

Writers can leverage Shiru Notes to draft stories, poems, or scripts in a calm and inspiring environment. The simplicity of the interface allows for uninterrupted creativity, helping writers to capture their ideas before they vanish.

Overview

About Perkoon

Perkoon is a file transfer service designed to solve the core problem of moving files from one point to another without the typical friction, privacy invasions, and hidden costs. It is built for individuals, freelancers, and teams who are tired of artificial file size limits, mandatory account creation, and services that monetize user data. Perkoon's main value proposition is its refreshingly honest and technically elegant two-mode system. Its flagship offering is a completely free, unlimited peer-to-peer (P2P) transfer service that works directly between browsers when both parties are online, ensuring privacy and eliminating operational costs. For situations where the recipient is offline, Perkoon offers a straightforward paid cloud storage option, transparently priced to cover server costs. Uniquely, Perkoon is natively built for automation, featuring tools that allow AI agents and scripts to interact with the service directly, making it a future-proof solution for both people and the machines that assist them.

About Shiru Notes

Shiru Notes is an innovative note-taking application designed for those who value simplicity and privacy in their writing processes. It provides a clean, minimalistic interface that allows users to concentrate fully on their thoughts without the distractions typical of more complex applications. Ideal for students, professionals, or anyone who enjoys writing, Shiru Notes serves as a secure haven for jotting down ideas, reflections, or plans. In a digital landscape often focused on sharing and visibility, this application prioritizes personal space and confidentiality. With automatic saving and robust encryption, users can trust that their notes remain private and secure. Shiru Notes transforms the note-taking experience, combining the ease of digital technology with the simplicity of traditional pen and paper, ensuring that your fleeting thoughts can be captured effortlessly and preserved for future reflection.

Frequently Asked Questions

Perkoon FAQ

Do you store my files?

For P2P transfers, your files never touch our servers; they go directly from the sender's browser to the recipient's. For cloud transfers (used when the recipient is offline), files are encrypted and stored temporarily on our servers to facilitate the delivery. We are transparent that this is the part of the service that incurs a cost.

Can Perkoon see what I'm sending in a P2P transfer?

No. In a P2P transfer, the data stream is established directly between the two browsers involved. Our servers only help set up the connection but cannot intercept or see the actual file data being transferred. We literally cannot see what you are sending.

Why is the P2P transfer free forever?

The P2P technology we use allows browsers to connect directly to each other. This process costs us very little in terms of server resources and bandwidth. Therefore, we can offer it for free indefinitely. We only charge for the cloud storage feature, which genuinely requires us to maintain and pay for server infrastructure.

What if the other person is offline?

If your recipient is not online to receive the direct P2P transfer, Perkoon offers an encrypted cloud storage option. You can upload the file to our secure servers, and we will hold it for your recipient to download at their convenience. This is a paid feature, and details can be found on our pricing page.

Shiru Notes FAQ

How do I sign up for Shiru Notes?

Signing up for Shiru Notes is straightforward. Simply visit the website, click on the "Start Writing Free" button, and follow the prompts to create your free account. No credit card is required to get started.

Is my data secure with Shiru Notes?

Yes, user privacy and data security are top priorities for Shiru Notes. The application uses advanced encryption to protect your notes, ensuring that they are accessible only to you and safeguarding your personal information from unauthorized access.

Can I access my notes from different devices?

Shiru Notes is designed to be cloud-based, allowing you to access your notes from any device with an internet connection. This flexibility ensures that your thoughts are always at your fingertips, no matter where you are.

What is the limit on the number of notes I can create?

With a free account, users can create up to 50 notes. This allows ample space for capturing ideas and thoughts. If you find yourself needing more, consider exploring premium options that may offer additional features and storage.

Alternatives

Perkoon Alternatives

Perkoon is a straightforward file transfer service in the productivity and management category, designed to move files directly and privately between users. People often look for alternatives to any tool for various reasons, such as needing different pricing models, specific features like advanced collaboration, or compatibility with certain platforms and workflows. When evaluating other options, it's wise to consider your core needs. Key factors include the method of transfer, such as direct peer-to-peer versus cloud storage, the presence of file size or bandwidth limits, and the overall philosophy regarding user privacy and data handling. The ideal service aligns with your technical requirements and comfort level.

Shiru Notes Alternatives

Shiru Notes is a secure, minimalist app designed for capturing thoughts and ideas with ease and privacy. As a productivity and management tool, it stands out by offering a distraction-free environment that fosters creativity while ensuring user privacy through robust security features. Users often seek alternatives to Shiru Notes for various reasons, including pricing models, specific feature sets, or compatibility with different platforms and devices. When looking for an alternative, it’s essential to consider factors such as user interface design, security measures, and the specific needs you have for note-taking, such as collaboration features or integration with other apps.

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