Perkoon vs Shiru Notes
Side-by-side comparison to help you choose the right AI tool.
Perkoon offers free, unlimited peer-to-peer file transfers with no signup required.
Last updated: March 3, 2026
Shiru Notes
Shiru Notes is a secure, minimalist app that helps you effortlessly capture and protect your thoughts and ideas.
Last updated: February 28, 2026
Visual Comparison
Perkoon

Shiru Notes

Feature Comparison
Perkoon
Truly Free P2P Transfers
This is the heart of Perkoon. When both sender and receiver are online, files travel directly between their web browsers using WebRTC technology. There is no intermediary server, which means there are absolutely no file size caps, no forced account creation, and your data is never stored by Perkoon. It's fast, private, and free because the architecture makes it cost-effective to offer.
Encrypted Cloud Storage for Offline Recipients
Life doesn't always sync up. When you need to send a file to someone who isn't currently online, Perkoon's cloud storage steps in. Your file is encrypted and securely held on a server until your recipient is ready to download it. This is the part of the service that has real infrastructure costs, which is why it operates on a paid model, keeping the business transparent and sustainable.
Native AI & Automation Accessibility
Perkoon is built for the future. It features a machine-readable state, stable DOM selectors, and a dedicated automation API (window.__perkoon). This allows AI assistants, bots, and automated workflows to send and receive files programmatically without the inefficiency and fragility of simulating human clicks. It’s file transfer designed for both people and their digital agents.
Command Line Interface (CLI) Tool
For developers and terminal enthusiasts, Perkoon offers a full-featured CLI accessible via npx perkoon. You can send and receive files directly from your command line, enabling seamless browser-to-CLI and CLI-to-CLI transfers. It brings the same simplicity and power of the web service to your workflow, proving that terminals deserve nice things, too.
Shiru Notes
Distraction-Free Interface
Shiru Notes boasts a minimal interface that promotes focus and clarity. By stripping away unnecessary elements, users can concentrate solely on their thoughts and ideas, making the writing process more enjoyable and efficient.
Automatic Saving
One of the standout features of Shiru Notes is its automatic saving functionality. As you type, your notes are saved in real-time, ensuring that you never lose a thought again. This feature takes the stress out of note-taking, allowing you to write freely.
Enhanced Privacy and Security
With top-notch encryption protocols, your notes are accessible only to you. Shiru Notes prioritizes your privacy, making it an ideal choice for those who wish to keep their thoughts and ideas secure from prying eyes.
Intuitive Writing Experience
The writing editor in Shiru Notes resembles a blank page, providing a calm space for your ideas to flow naturally. This intuitive design encourages users to write with intention and creativity, making the note-taking experience both fulfilling and productive.
Use Cases
Perkoon
Sending Large Project Files to a Client
Freelancers and creatives often need to send massive video edits, design portfolios, or code repositories that exceed the limits of email or other free services. With Perkoon's P2P transfer, you can send hundreds of gigabytes directly to your client's browser in one go, for free, with no compression or wait times, ensuring they get the full-quality work.
Automated Backup Scripts and AI Workflows
A developer has a script that generates nightly reports or an AI agent that creates weekly content batches. Using Perkoon's API or CLI, these automated processes can instantly send the generated files to a designated recipient or cloud folder without any manual intervention, seamlessly integrating file transfer into automated pipelines.
Sharing Personal Media Collections
Imagine wanting to share all your vacation photos and videos from a recent trip with family—a collection easily reaching 50GB. Instead of splitting into dozens of links or paying for a one-time transfer, you can create a single Perkoon P2P link. As long as your family is online, they can download the entire collection directly from you, quickly and privately.
Ad-Hoc Collaboration Between Teams
Two remote team members need to exchange a large dataset or a prototype asset immediately during a call. Instead of uploading to a slow cloud drive, one can start a Perkoon P2P transfer and share the link in the chat. The other person clicks and the file downloads in real-time, facilitating instant, frictionless collaboration without leaving the browser.
Shiru Notes
Capturing Ideas on the Go
Shiru Notes is perfect for capturing fleeting ideas, much like cherry blossoms that are beautiful yet brief. Whether you’re commuting or enjoying a coffee break, jot down your thoughts quickly and effortlessly.
Organizing Study Notes
Students can utilize Shiru Notes to organize their study materials and lecture notes. The distraction-free interface allows them to focus on learning, while automatic saving ensures that no important information is lost.
Professional Planning
For professionals, Shiru Notes serves as a secure space to plan projects, brainstorm strategies, or outline presentations. The privacy features mean that sensitive information remains confidential, allowing for open and honest planning.
Personal Reflection and Journaling
Individuals looking for a private space to reflect on their day or journal their thoughts will find Shiru Notes invaluable. The app provides an environment conducive to introspection, making it easier to capture personal insights.
Overview
About Perkoon
Perkoon is a refreshingly honest file transfer service that cuts through the noise and gets back to basics: moving your files from point A to point B without hassle. It's built for anyone tired of artificial limits, mandatory sign-ups, and services that treat your data as a product. At its core, Perkoon offers two smart ways to send files. First, its flagship free service uses peer-to-peer (P2P) technology to beam files directly between browsers when both people are online. This means no size limits, no accounts, and because the data never passes through a central server, it's private and costs Perkoon nothing to run—so it's free for you, forever. For when the recipient is offline, Perkoon provides encrypted cloud storage, a paid feature that honestly covers the cost of running servers. What truly sets Perkoon apart is its native design for the age of AI, offering built-in tools for automation and AI agents to interact with the service directly, no screen-scraping required. With a simple CLI tool also available, Perkoon is the straightforward, powerful, and privacy-focused file transfer solution for real people and the machines that help them.
About Shiru Notes
Shiru Notes is a thoughtfully crafted note-taking application designed with a core focus on simplicity and privacy. It provides users with a minimalistic interface that fosters concentration, allowing individuals to immerse themselves in their thoughts without unnecessary distractions. This tool is perfect for anyone, from students to professionals, who desires a secure environment to jot down ideas, reflections, or plans without the pressure of sharing or public scrutiny. In a world where digital interactions often emphasize visibility, Shiru Notes offers a sanctuary for private writing. With features like automatic saving and robust encryption, users can be confident that their notes remain personal and secure. The platform transforms note-taking into a fulfilling experience, enabling users to capture fleeting thoughts effortlessly using digital technology while maintaining the simplicity of traditional pen and paper. Whether you are brainstorming, planning, or simply reflecting, Shiru Notes enhances your thinking process and allows for a deeper connection with your ideas.
Frequently Asked Questions
Perkoon FAQ
Is peer-to-peer (P2P) transfer really free forever?
Yes, absolutely. Perkoon's P2P transfer is free and unlimited because of how it works: files stream directly from one browser to another without ever touching Perkoon's servers. This means there are no storage or bandwidth costs for the company to cover for this specific service, so they can genuinely offer it for free indefinitely, no strings attached.
What happens if the person I'm sending to is offline?
If your recipient is not online to accept the direct P2P connection, Perkoon offers a seamless fallback to encrypted cloud storage. You can choose this option to upload your file to Perkoon's servers, where it is encrypted and held until your recipient comes online to download it. This cloud storage service is a paid feature, as it involves real infrastructure costs.
How does Perkoon protect my privacy?
Privacy is a core principle. In P2P mode, your files never pass through Perkoon's servers; they take a direct path between you and the recipient, so Perkoon cannot see your data. For cloud transfers, files are encrypted on their servers. Perkoon has a strict no-scanning, no-selling data policy, ensuring your files stay yours.
Can I use Perkoon from the command line?
Definitely! Perkoon provides an official Node.js CLI tool. You can install and run it directly with npx perkoon send [file] or npx perkoon receive. This allows you to initiate transfers from your terminal to a web browser, or even between two terminals, making it perfect for scripting and server environments.
Shiru Notes FAQ
Is Shiru Notes free to use?
Yes, Shiru Notes offers a free plan that allows users to create up to 50 notes without requiring a credit card. This makes it easy to try the application without any financial commitment.
How does Shiru Notes ensure my privacy?
Shiru Notes employs advanced encryption techniques to protect your notes. This means that your data is secure and only accessible by you, ensuring that your thoughts and ideas remain private.
Can I access my notes from multiple devices?
Shiru Notes is designed to be cloud-based, allowing you to access your notes from any device with an internet connection. Your notes are synced automatically, making it convenient to write wherever you are.
What kind of notes can I create with Shiru Notes?
You can create various types of notes with Shiru Notes, including ideas, reflections, plans, and study materials. The flexible writing platform caters to a wide range of note-taking needs, making it versatile for all users.
Alternatives
Perkoon Alternatives
Perkoon is a modern file transfer service in the productivity and management category. It focuses on direct, peer-to-peer transfers with no file size limits and no mandatory signups, making it a streamlined choice for quick sharing. People often look for alternatives for various reasons. They might need a different pricing model, require specific features like advanced team collaboration, or need guaranteed compatibility with certain platforms or automated workflows. It's a common step in finding the perfect tool for individual or business needs. When evaluating other options, consider your core requirements. Key factors include transfer speed and reliability, privacy and security standards, ease of use for all parties involved, and whether the service supports the automation or integration capabilities your work demands.
Shiru Notes Alternatives
Shiru Notes is a secure and minimalist app designed for capturing thoughts and ideas effortlessly while maintaining user privacy. It falls into the productivity and management category, catering to individuals who value a distraction-free and protected writing space. Users often seek alternatives to Shiru Notes for various reasons, such as pricing concerns, additional features, or compatibility with specific platforms. When searching for an alternative, it’s essential to consider aspects like user interface simplicity, security measures, and the ability to save notes seamlessly, ensuring a smooth writing experience.