Free online clipboard — no login
An online clipboard for every machine you own.
Copy on one machine, paste on another. One short key on each device and they share a clipboard — no account, no install, nothing on a server. Works across networks, not just the same Wi-Fi.
- Sync text, images and files between Windows, macOS, Android and ChromeOS
- Encrypted in the browser, before anything is sent
- Nothing is written to disk, on your machine or ours
Type it on your other device — or type a key you were given over it, and the same button joins.
Free. Works in Chrome on Windows, macOS and Android.
Live
Sessions running right now
Sessions worldwide
From the relay, at most once every 30 seconds — totals only, no keys, no addresses, nothing you copied. If the number is small, this is new.
And only from this relay, in memory, gone when it restarts — anyone running their own relay is invisible here, so the real number is only ever higher.
Getting started
How to sync your clipboard between two devices
Open this page on both devices and type the same key. Nothing to download, no account to make — about fifteen seconds.
- Open it on the first machine. It generates a short key and shows it large.
- Type that key on the second machine, or scan the QR code.
- Copy anything, then switch back — it is already on the way.
- On the other device it lands on the system clipboard. Just paste.
The path a copy takes
How your clipboard gets from one device to the other
Encrypted where it was copied, decrypted where it lands. The relay in the middle only ever sees a room hash and ciphertext, and keeps neither. Files skip it entirely.
Your laptop encrypts the clip, the relay passes the ciphertext along, and your desktop decrypts it and puts it on the system clipboard. Files take the lower route: straight between the two machines, never through the relay.
Capabilities
What this online clipboard can do
Text and images
Screenshots arrive as a preview.
Files, peer to peer
Up to 5 MB, straight between your machines.
End-to-end encrypted
The key never leaves your browser.
Installs as an app
Own window, own icon, works offline.
No account
No email, no password. Close the tab and it is gone.
One switch, three settings
Everything you copy, only this window, or nothing.
Where this fits
RealtimeClipboard vs Snapdrop, PairDrop, LocalSend and AirDrop
The nearby tools are mostly file droppers: you pick a device and push a file at it. RealtimeClipboard is a clipboard — what you copy shows up ready to paste on the other machine, without picking anything.
| Tool | Account | Install | Across networks | Lands on system clipboard | Files | Platforms |
|---|---|---|---|---|---|---|
| RealtimeClipboard | None | None — browser | Yes | Yes | P2P, 5 MB | Windows, macOS, Android, ChromeOS, Linux |
| PairDrop | None | None — browser | Yes, via a 6-digit pairing code | No — you send a message | P2P | Any browser |
| Snapdrop | Optional since the LimeWire acquisition | None — browser | Same network only | No | P2P | Any browser |
| LocalSend | None | Native app on both ends | Same network only | No | Unlimited, LAN | Windows, macOS, Linux, Android, iOS |
| AirDrop | None | Built in | Nearby devices only | No | Unlimited | Apple devices only |
| KDE Connect | None | App on both ends | Same network only | Yes | Yes | Linux, Windows, Android |
| Pushbullet | Required | App or extension | Yes | Yes, on the paid tier | Paid above a small cap | Windows, Android, browsers |
Checked against each project's own docs in August 2026 — open an issue if something has gone out of date. Longer reads: Snapdrop alternatives · syncing across different networks · what an online clipboard is · what makes a clipboard live
Before you rely on it
Things worth knowing before you rely on it
It works end to end, and the trade-offs are still real
- Key is the password
- Anyone holding it can read the session and request your files.
- No background watch
- No web app can read the clipboard unfocused. Switch to the tab and it catches up.
- Clipboard sends all
- Including passwords you copied for something else. The other two rungs exist for that.
- P2P fails at work
- Corporate networks block direct transfers. It falls back to the server, and says so.
- Chrome first
- Firefox and Safari receive, and send what you paste in — they cannot read the clipboard.
Questions
Online clipboard questions, answered
What is an online clipboard?
An online clipboard is a web page that holds what you copy on one device so you can paste it on another. Instead of emailing yourself a link or plugging in a cable, both devices open the same page, identify themselves with a short key, and share a single clipboard between them. How it differs from a clipboard manager and a pastebin.
How do I sync my clipboard between my phone and my PC?
Open RealtimeClipboard on both, type the same short key on each, and copy something. It arrives on the other device ready to paste. There is no account to make and nothing to install, so it works on a machine where you do not have admin rights.
Can I share a clipboard between Windows and Android without an account?
Yes. RealtimeClipboard needs no email, no password and no sign-in — the short key is the whole identity of a session. When you close the tab the session is gone, and nothing about it was ever written to disk. What having no account costs you.
Does it work if the two devices are on different networks?
Yes. Text goes through a relay, so a laptop on home Wi-Fi and a phone on mobile data share a clipboard perfectly well. This is the main difference from Snapdrop, LocalSend and AirDrop, which need both devices on the same network. Files are the exception: they go directly between the two machines, and that direct connection is the part corporate firewalls sometimes block. Why most tools stop at the network edge.
Why not just use KDE Connect?
Use it if it fits — it does clipboard sync properly and it is excellent. It needs an app installed and paired on both devices, and both of them on the same network. RealtimeClipboard is for the cases that rules out: a machine where you cannot install anything, a Chromebook, an iPhone, or two devices on different networks. No install, no pairing step, no account.
What happens if the peer-to-peer connection fails?
It falls back to sending the file through the relay in encrypted chunks, and says so in the interface — it does not silently stall. Direct connection is tried for five seconds first. There is deliberately no TURN server: TURN would fix corporate networks by relaying the bytes, which costs bandwidth per megabyte and puts the operator back in the data path. Text is unaffected; it always goes via the relay, encrypted.
Is an online clipboard safe to use?
It depends entirely on whether the server can read what you copy. Text is encrypted in your browser with AES-GCM before it is sent, the key never leaves your device, and nothing is written to disk — so against anyone on your network, your Wi-Fi or your ISP, it is safe.
The honest caveat is that the key is a bearer credential: anyone who learns it can read that session while it is open. The room address is derived through the same 250,000-iteration PBKDF2 as the encryption key, so it cannot be worked back to your key cheaply — the threat model has the arithmetic and does not round it in our favour.
Is this a realtime clipboard?
Yes. RealtimeClipboard is a realtime clipboard: the moment a copy is captured it is encrypted and pushed over an open WebSocket, so it lands on the other device in well under a second on a normal connection. There is no polling and no refresh button — the other device already has it by the time you look at it. "Live clipboard" and "real-time clipboard" name the same thing.
Where is my clipboard data stored?
Nowhere. There is no database and nothing is written to disk. The relay holds the last message for a room in memory and drops it; files never reach the server at all, because they travel peer-to-peer between your two devices.
Can it watch my clipboard in the background?
No, and neither can any other web app on any browser — reading the clipboard requires the window to have focus, which is a deliberate browser security rule. You switch to the RealtimeClipboard tab and it picks up whatever you copied. A native app can do this; a web page cannot, and anything claiming otherwise on the web is worth a second look.
Which browsers does it work in?
Chromium browsers get the full experience — Chrome, Edge, Brave and Chrome on Android can read the clipboard directly. Firefox and Safari can receive everything and can send anything you paste in by hand, but cannot read the clipboard on their own, because they have not implemented that part of the Clipboard API.
Is RealtimeClipboard free?
Yes, free and open source under the MIT licence, with no paid tier and no account. The relay is a small FastAPI service you can also run yourself if you would rather not use someone else's.