Blog
Notes on peer-to-peer file transfer, WebRTC, and building Nearsend.
- How WebRTC Makes Browser-to-Browser File Transfer Possible,
A plain-English look at the technology that lets two browsers send files directly to each other; no app, no server storage, no plugin.
- Does Sending a File Ever Touch a Server? A Plain-English Breakdown,
"Peer-to-peer" gets used loosely by a lot of file-sharing tools. Here's exactly which parts of a transfer touch a server, and which don't.
- Why Free File-Sharing Tools Keep Shrinking Their Size Limits,
Why so many "free" file transfer services cap you at 2GB, 5GB, or push you to sign up for more, and how a direct, device-to-device transfer sidesteps the limit entirely.
- Is Peer-to-Peer File Sharing Safe? Separating Myth From Reality,
"P2P" carries a reputation from an earlier era of file sharing. Here's what's actually true about safety in a modern, one-to-one, browser-based P2P transfer.
- USB Cable vs Wireless Transfer: Which Is Actually Faster in 2026,
Cables still have a reputation for being the fast, reliable option. Here's how that reputation holds up against a direct wireless transfer in practice.
- Why Your File Transfer Gets Stuck at 99% (and How to Fix It),
The classic "99%... and then nothing" moment. Here's what's actually going on, and what to do about it.
- Why a File Transfer Still Needs an Internet Connection, Even in the Same Room,
Two phones sitting next to each other still need Wi-Fi or mobile data to talk through Nearsend. Here's the real, permanent reason why.
- Peer-to-Peer vs Client-Server: How File Sharing Actually Moves Your Data,
Two fundamentally different shapes a file transfer can take, and why the difference matters more than which app you happen to be using.
- What DTLS Encryption Means for Your File Transfer,
Your file transfer is encrypted "by default", here's what that actually guarantees, and what it doesn't.
- What "No Account Required" Actually Means for Your Privacy,
Skipping sign-up reads as a convenience feature. Underneath it, it's also a real privacy decision, here's what it does and doesn't buy you.
- Metadata: The Hidden Information Most File-Sharing Tools Leak,
The file itself isn't the only thing that gets shared. A look at the metadata that rides along with it, and who normally gets to see it.
- Email Attachments vs File-Sharing Tools: Where the 25MB Limit Comes From,
Almost every email provider caps attachments around 25MB. Here's the actual technical reason why, and what changed once cloud links and direct transfer tools came along.
- Why Your Browser Can Now Do What Used to Need an App,
A decade ago, moving files, video-calling, or scanning a QR code all meant installing something first. Here's what actually changed.
- Cloud Storage vs Direct Transfer: Where Does Your Data Actually Go,
"It's in the cloud" is a comforting phrase that hides a fairly concrete answer. Here's where a file actually goes with each approach.
- A Beginner's Guide to End-to-End Encrypted File Sharing,
"End-to-end encrypted" is a specific technical claim, not just a reassuring phrase. Here's what it actually means, in plain terms, for sharing a file.
- What to Do When a QR Code Won't Scan,
A practical troubleshooting guide for the most common reasons a pairing QR code fails to scan, and what actually fixes each one.
- How to Send Files to Multiple Devices at Once,
Most file-transfer tools assume one sender, one recipient. Here's how to actually handle sending the same thing to several devices at once.
- AirDrop, Quick Share, and Browser-Based Transfer: What's the Real Difference,
Three different approaches to "send this file to that device nearby," and the real trade-offs between them, beyond just which company made them.
- How to Send a File to Someone You've Never Met Online, Safely,
Sometimes you need to get a file to someone you only know from a marketplace listing, a forum, or a work introduction. Here's how to do that without oversharing.
- A Quick Checklist Before You Send a Large File,
A short, practical checklist to run through before you start moving a big file, so you're not troubleshooting halfway through.
- Bluetooth vs Wi-Fi vs WebRTC: Comparing How Devices Actually Talk to Each Other,
Three different ways two devices can talk to each other, each suited to a different job. Here's how they actually compare.
- Messaging Apps vs Dedicated File Transfer Tools for Sending Documents,
"Just send it on WhatsApp" is the default for a lot of people. Here's what that default actually costs you, and when it's the right call anyway.
- Why Large File Transfers Are Getting More Common,
RAW photos, 4K video, game assets, 3D models, the files ordinary people move around have quietly gotten much bigger. Here's why.
- File Sharing for Remote Teams Without a Shared Cloud Account,
Not every work handoff needs to go through company-wide cloud storage. Here's when a direct transfer is actually the better fit for a remote team.
- Sending Raw Photos and Video Without Compression: A Photographer's Guide,
Messaging apps and some cloud services quietly compress your images and video. Here's how to move full-resolution files without losing quality.
- A Student's Guide to Moving Files Between School and Personal Devices,
Between a school-managed Chromebook, a personal phone, and a laptop at home, getting your own work where you need it shouldn't require three different accounts.
- IT Help Desk Guide: Fast File Transfer for BYOD Environments,
Getting a file onto an employee's personal phone or laptop without enrolling it in company MDM is a common help-desk request with no great default answer. Here's a practical option.
- Sending Files While Traveling on Public or Hotel Wi-Fi,
Hotel and airport Wi-Fi has a reputation for being unreliable for exactly this. Here's what actually helps.
- Why "No Sign-Up" Web Tools Are Having a Moment in 2026,
A growing number of genuinely useful web tools now do real work with zero account creation. Here's what's actually driving that shift.
- The Real Cost of "Free" File Sharing Services,
"Free" file-sharing tools still have to pay for the servers your files sit on. Here's where that cost actually gets recovered, and what's worth watching for.
- How Two Devices on Different Networks Actually Find a Path to Each Other,
One device on home Wi-Fi, one on mobile data, on opposite sides of the country; they still manage to open a direct connection. Here's the negotiation that makes that possible.
- Moving Files Off an Old Phone Before You Trade It In,
Before a phone gets traded in, sold, or recycled, there's one last job: getting everything worth keeping off it. Here's a practical, thorough way to do that without waiting on a cloud upload first.
- Sharing Files With Family Who Aren't Tech-Savvy,
Walking a parent or grandparent through sending a file shouldn't require walking them through an account signup first. Here's what actually makes it easier, from someone on the other end of the phone call.
- A Short History of Sending a File From One Computer to Another,
From physically carrying a floppy disk across a room to a direct encrypted stream between two browsers, the shape of "sending a file" has changed more than most people notice day to day.
- What GDPR and Data-Minimization Actually Require From File-Sharing Tools,
"Data minimization" has a specific, practical meaning under GDPR, not just a compliance-department checkbox. Here's what it actually asks of a file-sharing tool, in plain terms.
- The Case for Ephemeral File Sharing: Nothing Left Behind,
Most digital tools default to keeping a copy of everything, indefinitely. Here's the case for a transfer that leaves nothing behind once it's actually done.
- Why QR Codes Became the Default Way to Pair Devices,
A grid of black-and-white squares became the default way to connect two devices without either one describing itself out loud. Here's why that specific format won.
- Send a GB File: How Long a Gigabyte Transfer Really Takes,
A GB file transfer can take seconds or an hour depending on one number. Here is the math, what slows real transfers down, and how to speed yours up.
- How to Send a Big File Between Devices, Step by Step,
Need to send a big file from a phone, laptop or desktop? Here is a step-by-step way to do it with no upload, no account and no size cap.
- Send a Big File: 6 Ways Compared (and When Each Wins),
Email, cloud links, messaging apps, USB drives, local-network tools and direct browser transfer compared for sending a big file, with honest trade-offs.
- Snapdrop Not Finding Devices? Causes and Fixes,
If Snapdrop cannot see your other device, the cause is usually the network, not your browser. Here are the common reasons and the fixes that work.
- What Is Snapdrop? How It Works and Where It Falls Short,
Snapdrop is a browser-based, AirDrop-style file sharing tool. Learn how it works, what it does well, and the limits that send people looking for alternatives.
- HarmonyOS File Sharing With iPhone, Windows and Mac,
Huawei Share is great between Huawei devices. Here is what to do when a HarmonyOS phone needs to send files to an iPhone, a Windows PC or a Mac.
- Sending Multi-GB Files: What Breaks and How to Prevent It,
Big transfers fail for a handful of predictable reasons: sleep, memory, weak Wi-Fi and blocked direct paths. Here is how to spot each one before it costs you an hour.
- Send a Big File Without Email or WeTransfer,
Email stops at a few dozen megabytes and link services make you upload first. Here are four ways to send a big file, and when each one makes sense.
- Send a Big Video From iPhone to a Windows PC,
Moving a large iPhone video to Windows without iTunes, a cable or a cloud upload is simple once you know the three things that trip people up.
- Snapdrop Alternatives: PairDrop, LocalSend and Nearsend,
Snapdrop is still popular, but it only works on one network. Here is how PairDrop, LocalSend and Nearsend differ, and which one fits your situation.
- Quick Share Explained: What It Does and Where It Stops,
Quick Share, formerly Nearby Share, is the fast way to move files between Android devices and Windows. Here is how it works and where you need something else.
- Wi-Fi Direct for File Transfer: How It Works and Its Limits,
Wi-Fi Direct lets two devices connect without a router, and it powers some of the fastest phone-to-phone sharing. Here is how it works and why browsers cannot use it.
- Can You AirDrop to Windows or Android? What Works Instead,
AirDrop only works between Apple devices. Here is what you can do instead to send files between an iPhone or Mac and a Windows PC or Android phone.
- How to Choose a WeTransfer Alternative: 7 Questions,
Not every file sharing tool fits every job. Seven questions about size, expiry, privacy and speed make the right WeTransfer alternative obvious.
- Transfer Photos from iPhone to Windows Without USB,
A step-by-step way to move photos from an iPhone to a Windows PC in the browser, with no cable, no iTunes and no iCloud, plus fixes for the common snags.
- Transfer Photos from Android to PC Wirelessly,
Move photos from an Android phone to a Windows PC or Mac without a USB cable or an app, using only the browser on both devices. Steps and fixes included.
- Transfer Large Videos from Android to PC,
How to move big videos such as 4K clips from an Android phone to a PC without a cable, an upload or compression, and how long it takes.
- Send Files Without an Account or Sign-Up,
Ways to send files with no account, no email address and no app, what each costs you in privacy, and how a browser-to-browser transfer works.