- Web Wormhole https://webwormhole.io/ https://github.com/saljam/webwormhole
- Localsend https://web.localsend.org/
- FilePizza https://file.pizza/
ShareDrop sharedrop.io https://github.com/szimek/sharedrop(SOLD, not recommended, use one of the forks)A clone SnapDrop snapdrop.net https://github.com/RobinLinus/snapdrop(SOLD, not recommended, use one of the forks)- A fork PairDrop https://pairdrop.net/ https://github.com/schlagmichdoch/pairdrop
- ToffeeShare https://toffeeshare.com/
- Instant.io https://instant.io/
- FileTC https://file.tc/
- Send Anywhere https://send-anywhere.com/
- Just Beaam it https://www.justbeamit.com/
- Peermesh https://perguth.de/peermesh https://github.com/perguth/peermesh
- drop.lol https://drop.lol/ https://github.com/mat-sz/filedrop
- rDrop https://rdrop.link/
- AirDelivery https://airdelivery.site/
- Blaze https://blaze.vercel.app/ https://github.com/blenderskool/blaze
- SendFiles https://sendfiles.dev/ https://github.com/jchorl/sendfiles
- Katana https://sekky61.github.io/Katana/ https://github.com/Sekky61/Katana
- FileLove https://file.love/ https://github.com/midzer/filelove
- Filegogo https://send.22333.fun/ https://github.com/a-wing/filegogo
- Peertransfer https://github.com/perguth/peertransfer https://perguth.de/peertransfer/
- Yt2fb.in https://yt2fb.in/file-transfer/
- P2P File Transfer https://chidokun.github.io/p2p-file-transfer/ https://github.com/chidokun/p2p-file-transfer
- P2P File Transfer https://webbrowsertools.com/p2p-file-transfer/ https://github.com/leocompson/p2p-file-transfer
- NeighborHoodShare https://neighbor-share.vercel.app/ https://github.com/dikshantrajput/neighborHoodShare
- Vegh https://vegh.netlify.app/ https://github.com/veghfile
- P2P File Sharing https://taonexus.com/p2pfilesharing/
- Test which of these tools can send very large (10GB+) files without freezing/crashing the browser.
- croc https://github.com/schollz/croc
- p2pcopy https://github.com/psantosl/p2pcopy
- pcp https://github.com/dennis-tra/pcp
- wormhole-william https://github.com/psanford/wormhole-william
- Wush https://github.com/coder/wush
- sendme https://www.iroh.computer/sendme https://github.com/n0-computer/sendme
- B·o·B https://bob.osau.re/ https://github.com/dinosaure/bob
(Updated the list based on comments. Only keeping p2p tools)

@Ccocconut
Well the gist has a section for browser-based tools, which as far as I know all use WebRTC behind the scenes, which exposes information about a peer's network topology in RTCSessionDescription offer and answer and RTCICECandidate, which both need to be exchanged between peers for a connection between them to happen. If you know of another tool and way that works in the browser I would be very glad to hear about it.
In my tool specifically, you can choose to use a whitelist or a blacklist, which means that the signaling server will not send your information to peers who are not in the whitelist or who are in the blacklist, even if they are in the same URL, which is generated by your browser's randomness double-SHA512-hashed so kind of difficult to be found by chance if you don't share it with anyone.