Feature Guide

CoPaste Online is a fast, lightweight file and text sharing platform. Upload a file or paste text, get a short 6-character code, and share it with anyone — no app installation needed. Works on any device with a browser.

The Create New Paste card on the homepage is where everything starts. You can upload one or more files, or type/paste text directly.

1. Open CoPaste Online in your browser. You don't need to log in to get started.
2. Click Upload File to pick one file, or Multiple Files to select up to your plan's batch limit. You can also drag and drop files directly onto the text area.
3. Alternatively, type or paste any text content directly into the text area.
4. Choose an expiry date (if logged in) or leave the default (3 days for guests).
5. Click Save. A unique 6-character access code is generated instantly.
6. Share the code, copy the direct link, or use the QR code — the recipient enters the code to access your file.

Supported file types: CoPaste Online does not restrict by file type or extension — every plan, including Guest, can upload any kind of file. The size limit for your plan (see below) is the only thing that matters.

Every upload on CoPaste Online gets a unique 6-character alphanumeric code (e.g. AB12CD). This code is the key to accessing the file.

1. On the Access Paste by Code panel (right column on desktop, below on mobile), type the 6-character code in the input field.
2. Press Access or hit Enter. The file or text content will appear immediately below.
3. You can also open it directly via URL: https://copaste.my.id/?code=AB12CD

What you can do after accessing a file:

• View images inline, play videos and audio, preview PDFs and Word/Excel files
• Copy text content with one click
• Download any file type to your device
• View the file expiry date
• If you are the file owner: toggle Local Network Share and Private File settings directly from this panel

Every file gets a QR code that encodes its direct access URL. This is the fastest way to transfer a file between a computer and a phone — no typing required.

Two ways to use QR codes:

• Show QR for a file: After uploading, click the QR button next to any file in your history list. A modal appears with the QR code and a copyable link.
• Scan a QR code: Click the icon inside the Access Code input field. Your browser's camera will open and automatically detect the QR code.

All files on CoPaste Online have an expiry date. When a file expires, it is permanently and automatically deleted from the server — the code becomes invalid.

The expiry badge on each file in your history shows three states:

• Forever — Lifetime plan permanent files
• Soon — expires within 24 hours
• Expired — already deleted

You don't need an account to use CoPaste Online. As a guest, you can upload files and access them immediately — but with stricter limits than registered users.

Creating an account is free and unlocks significantly more functionality. Registration requires only a username, email, and password.

Benefits of a registered account:

• Your file history is tied to your account — accessible from any device you are logged into
• Upload history survives IP changes (e.g., switching Wi-Fi networks)
• Access to the File Manager panel to manage all your uploads
• Greater upload limits (batch, daily, file size) even on the free tier
• Ability to choose file expiry (up to 14 days on free)
• Private Files — restrict any upload to your account only

Forgot your password? Use the "Forgot password?" link on the login form to reset it via email.

CoPaste Local Network Share lets you share files instantly between any devices connected to the same Wi-Fi or LAN (local area network) — without sending a link, without installing any app, and without needing an internet connection to transfer between local devices. It works like a shared clipboard for your entire network: upload once, and everyone on the same network can see it.

Common use cases:

• 📱→💻 Transfer a photo from your phone to your laptop on the same Wi-Fi
• 🏢 Share a document with colleagues on the office LAN without email
• 🏠 Move files between home devices (PC, tablet, TV, NAS) without USB
• 👨‍💻 Share code snippets or config files across developer machines on the same network
• 🖨️ Send a file to a shared device (printer server, shared PC) on the network

How to share a file on your local network:

1. Open CoPaste on any device — no installation needed, just a browser.
2. Upload a file or paste text as usual.
3. Access the file using its code (or from your history).
4. Find the Local Network Share toggle in the file view panel → toggle it ON.
5. On any other device connected to the same Wi-Fi or LAN, open CoPaste — the file appears in history automatically. No code needed.
6. Toggle it OFF at any time to remove it from the network immediately.

Availability: Local Network Share is available to all users including guests. Guest uploads are shared on the local network automatically — no toggle needed. Registered users can control it per-file.

When a file is marked Private, it can only be accessed by the account that uploaded it. Anyone else who has the 6-character code will see a "Private File" error — the file is completely hidden to them.

How to make a file private:

1. Upload a file. Files are public by default (anyone with the code can view them).
2. Access your file using its code.
3. In the file view, find the Private File toggle bar (visible only to the file owner on a qualifying plan).
4. Toggle it ON and confirm the dialog. The file is now private.
5. A Private badge appears next to the file in your history.
6. Toggle it OFF at any time to make the file accessible with its code again.

The File Manager is a collapsible panel on the homepage (below your history) available to all registered users. It shows up to 200 of your most recent uploads with powerful tools to manage them.

How to open it: Click the File Manager card header at the bottom of the left column on the homepage. The list loads only when you open it — not on every page load — keeping the app fast.

Basic features (all registered plans):

• Search — filter files by filename in real time as you type
• Type filter — show only Images, Documents, Videos, Audio, Archives, Text/Code, or Other
• Sort — by Newest, Oldest, Name A–Z, or Largest file first
• Open file — click any row to access that file's code
• Delete single — the button on each row
• Bulk delete — check multiple files → click Delete Selected
• Badges — Private · Network Shared

Premium & Lifetime plan extras:

• Rename files — click the icon on any file to rename it
• Storage usage bar — a visual indicator of your total storage used (shown in the card header and inside the panel)
• Extend expiry — click to add days to a file's expiry without re-uploading. Bulk extend is also supported (select files → Extend)
• Export CSV — download a CSV file of all your uploads (filename, type, size, expiry, privacy status) — useful for backups or auditing

CoPaste Online tracks how many devices are simultaneously active on your account. A device is considered "active" if it has been seen within the last 15 minutes.

A unique device fingerprint (derived from a browser cookie) is used to identify each device. If you exceed your plan's device limit, uploads from excess devices will be blocked with an error message.

Managing devices: Go to My Subscription → view your active sessions and revoke any you no longer use. Revoking a device immediately forces it to log out on next request.