Best Online File Sharing Services in 2026: 10 Services Compared Honestly

Not all file sharing services are equal. Some encrypt your files end-to-end so that nobody — including the company running the service — can read them. Others hold your encryption keys, scan your files, and log your access patterns. This guide compares 10 leading online file sharing services across five dimensions that actually matter: encryption model, file size limits, privacy policy, pricing, and account requirements.

The Encryption Spectrum: What "Encrypted" Actually Means

Before comparing services, it's important to understand there are three distinct things when a service says it "encrypts" your files:

1. Encryption in transit (TLS): Files are encrypted while traveling between your browser and the server. The server can read the files once they arrive. Every major service does this. It protects against network interception; it doesn't protect against the company or legal requests.
2. Encryption at rest (server holds keys): Files are stored encrypted on the server's hard drives. The company holds the decryption keys. The company can read any file on request — including its own staff, legal compulsion, or in a breach where keys are also compromised. Google Drive, Dropbox, and WeTransfer all operate this way.
3. End-to-end / zero-knowledge encryption (client holds keys): Files are encrypted on your device before upload. The server receives only ciphertext and holds no keys. The company mathematically cannot read your files. Only this model provides true privacy. FileShot, send.vis.ee, Proton Drive, and Tresorit operate this way.

The rest of this guide rates each service against these criteria and provides the hard facts on pricing and limits.

The 10 Services — Individual Reviews

1. FileShot.io

FileShot is the only zero-knowledge file sharing service that requires no account, supports files up to 10 GB on the free tier, and operates across web, desktop, Android, and a Chrome extension. Encryption is AES-256-GCM performed entirely in the browser before upload. The decryption key is embedded in the URL fragment (the part after #) which browsers never transmit to servers — meaning FileShot's infrastructure is cryptographically blind to file contents.

• Encryption model: Zero-knowledge AES-256-GCM (client-side, before upload)
• Free file size limit: 10 GB per file (50 GB total storage)
• Account required: No
• Link expiry: Configurable (1 hour to 30 days)
• Platforms: Web, Windows desktop, Android, Chrome extension
• Pricing: Free tier • Pro/Creator/Professional plans via Stripe
• Open-source ZK library: FileShotZKE on GitHub (GPL v2)

Best for: Anyone who needs to share sensitive files without the service provider having access — journalists, healthcare workers, lawyers, developers, privacy-conscious individuals.

2. WeTransfer

WeTransfer is the most widely-used ad-hoc file sharing service. Free tier allows 2 GB transfers without an account. Links expire after 7 days. WeTransfer is a good general-purpose tool but is not encrypted beyond TLS — WeTransfer staff can access file contents, and the company's privacy policy states files may be scanned for illegal content. Paid plans (WeTransfer Pro) increase limits to 200 GB and add storage.

• Encryption model: TLS in transit + encrypted at rest (WeTransfer holds keys)
• Free file size limit: 2 GB
• Account required: No (free tier)
• Link expiry: 7 days (free)
• Pricing: Free tier • WeTransfer Pro ~$15/mo

Best for: Quick, casual file sharing where privacy is not a concern — sharing creative files with clients, distributing large assets to a team.

3. Google Drive

Google Drive is the most ubiquitous cloud storage and sharing platform, included free with every Google account (15 GB shared across Drive, Gmail, and Photos). Sharing is link-based or contact-based. Google encrypts data at rest but holds all keys and can access files under legal requests or for policy enforcement. Google does scan Drive files for CSAM and spam. Integration with Google Docs, Sheets, and Slides is unmatched.

• Encryption model: TLS in transit + AES-256 at rest (Google holds keys)
• Free storage: 15 GB (shared with Gmail & Photos)
• Account required: Yes (to upload; recipients can view without account)
• Pricing: Free 15 GB • Google One from $1.99/mo (100 GB)

Best for: Teams already in Google Workspace; collaborative document editing; personal cloud storage.

4. Dropbox

Dropbox is a mature cloud storage and file sharing platform with a 2 GB free tier. Link sharing is clean and the desktop sync client is reliable. Dropbox scans file contents for malware and CSAM. Dropbox holds encryption keys and can produce files under legal request. Dropbox was breached in 2012 (68M accounts exposed) and disclosed it held plaintext email addresses. Business plans add admin controls, audit logs, and HIPAA BAA.

• Encryption model: TLS in transit + AES-256 at rest (Dropbox holds keys)
• Free storage: 2 GB
• Account required: Yes
• Pricing: Free 2 GB • Plus from $9.99/mo (2 TB)

Best for: Teams needing reliable sync with strong integrations; businesses who need HIPAA compliance via BAA.

5. Microsoft OneDrive

OneDrive is deeply integrated into Windows 11 and Microsoft 365. Free tier includes 5 GB. Sharing via link is simple. Like Google Drive and Dropbox, Microsoft holds encryption keys and can access files. Microsoft 365 Business plans include Compliance Manager features for regulatory purposes. OneDrive Personal Vault adds an extra authentication layer but is not end-to-end encrypted.

• Encryption model: TLS in transit + AES-256 at rest (Microsoft holds keys)
• Free storage: 5 GB
• Account required: Yes (Microsoft account)
• Pricing: Free 5 GB • Microsoft 365 from $6.99/mo (1 TB)

Best for: Windows users in Microsoft 365 ecosystem; businesses already on Azure AD.

6. Proton Drive

Proton Drive offers end-to-end encrypted cloud storage from the team behind ProtonMail. Files are encrypted with keys derived from the user's password — Proton cannot access content. Part of the Proton ecosystem which includes encrypted email, VPN, and calendar. Free tier is 1 GB (shared with ProtonMail). Swiss data protection law applies. Proton is open-source and has undergone independent audits.

• Encryption model: End-to-end encrypted (Proton holds zero knowledge)
• Free storage: 1 GB (shared with ProtonMail)
• Account required: Yes
• Share links: Password-protected E2EE links
• Pricing: Free 1 GB • Proton Unlimited ~$10/mo (500 GB)

Best for: Users who want a full privacy-focused cloud suite (email + VPN + drive) with E2EE and Swiss jurisdiction.

7. Tresorit

Tresorit is an enterprise-grade E2EE cloud storage solution with strong zero-knowledge guarantees and compliance certifications (ISO 27001, GDPR, HIPAA). Files are encrypted client-side before upload. Tresorit has never had a publicly disclosed breach. Pricing is higher than Google/Dropbox, reflecting the enterprise security focus. Free trial available; no permanent free tier with substantial storage.

• Encryption model: Zero-knowledge E2EE (Tresorit holds no keys)
• Free tier: 5 GB transfers (trial); no substantial permanent free tier
• Account required: Yes
• Pricing: Business plans from ~$12/user/mo
• Compliance: ISO 27001, GDPR, HIPAA

Best for: Enterprise teams needing compliance certifications, audit trails, and zero-knowledge guarantees with enterprise support.

8. send.vis.ee (Firefox Send Fork)

send.vis.ee is an open-source, self-hostable, privacy-first file sharing service based on the Firefox Send codebase (which Mozilla discontinued). Files are E2EE in the browser before upload. Supports up to 2.5 GB without an account on the public instance. Links are password-protected and expire after a set number of downloads or time period. Runs on servers in Germany (GDPR-protected jurisdiction).

• Encryption model: Client-side E2EE (open-source)
• Free file size limit: 2.5 GB without account
• Account required: No (for basic use)
• Open-source: Yes (GitHub)
• Pricing: Free

Best for: Privacy-focused users who prefer open-source and self-hostable infrastructure.

9. Box

Box is an enterprise content management platform with extensive compliance support (FedRAMP, HIPAA, GDPR, SOC 2 Type II). Box encrypts at rest and in transit but holds keys by default. Box KeySafe (enterprise plan) allows customers to manage their own encryption keys. Box excels at workflow automation, version control, and integration with business apps. Not designed for casual consumer file sharing.

• Encryption model: TLS + AES-256 at rest (Box holds keys by default; KeySafe for self-managed keys)
• Free storage: 10 GB (personal)
• Account required: Yes
• Pricing: Free 10 GB • Business plans from $15/user/mo

Best for: Regulated enterprise environments needing content management, compliance, and workflow automation.

10. Bitwarden Send

Bitwarden Send is a feature within Bitwarden (the open-source password manager) allowing users to share text or files in E2EE. Files are encrypted with a key that can optionally be embedded in the link. An optional password adds a second factor. Files are limited to 500 MB. Requires a Bitwarden account (free tier available).

• Encryption model: Client-side E2EE (Bitwarden open-source)
• Free file size limit: 500 MB
• Account required: Yes (Bitwarden account)
• Pricing: Free • Premium $10/year

Best for: Existing Bitwarden users needing quick E2EE sharing; text/code snippet sharing.

Master Comparison Table: All 10 Services

How to Choose: Decision Framework

The right service depends on three questions:

Does the file content need to remain private from the service provider? If yes, use only zero-knowledge or E2EE services: FileShot, send.vis.ee, Proton Drive, Tresorit, or Bitwarden Send. All others give the company access to your files.

Does the recipient need to do anything to access the file? If you need the recipient to receive files without creating an account, use: FileShot (no account, 10 GB, zero-knowledge), WeTransfer (no account, 2 GB, not E2EE), or send.vis.ee (no account, 2.5 GB, E2EE).

Is this for long-term storage or one-time sharing? For long-term E2EE storage: Proton Drive or Tresorit. For one-time transfer (set expiry, then gone): FileShot or send.vis.ee. For persistent cloud storage: Google Drive, Dropbox, OneDrive, Box.

Frequently Asked Questions

What is the best free online file sharing service?

For privacy: FileShot (10 GB free, zero-knowledge, no account) and send.vis.ee (2.5 GB, E2EE, no account, open-source). For general-purpose storage: Google Drive (15 GB free, account required). For quick no-account transfer without encryption requirements: WeTransfer (2 GB, no account). The "best" depends on whether privacy, file size, or convenience is the priority.

Which file sharing service has the best encryption?

FileShot, Tresorit, Proton Drive, send.vis.ee, and Bitwarden Send all operate on zero-knowledge or end-to-end encryption models where the service cannot access file contents. Google Drive, Dropbox, WeTransfer, OneDrive, and Box are encrypted but the companies hold keys and can read files. For the strongest encryption with no account required, FileShot offers zero-knowledge AES-256-GCM with a generous free file size limit (10 GB per file).

Can I share files online without creating an account?

Yes. FileShot (10 GB, zero-knowledge), WeTransfer (2 GB, not E2EE), and send.vis.ee (2.5 GB, E2EE) all allow file sharing without any account or registration. FileShot is the only account-free service offering both zero-knowledge encryption and 10 GB per-file free transfers.

What is the maximum file size I can send for free online?

FileShot: 10 GB per file, no account. Google Drive: 5 TB per file (but counts against your 15 GB storage quota). Dropbox: 100 GB per file on free tier (but limited to 2 GB total storage). WeTransfer: 2 GB per transfer, no account. send.vis.ee: 2.5 GB, no account. For the largest no-account, zero-knowledge free transfer, FileShot's 10 GB limit is the most generous among zero-knowledge services.

Is WeTransfer encrypted?

WeTransfer uses TLS (HTTPS) to encrypt files in transit and stores them encrypted at rest — but WeTransfer holds the encryption keys. WeTransfer staff can access files, and the company's privacy policy permits scanning for illegal content. WeTransfer is not end-to-end encrypted. For encrypted file sharing, use FileShot, send.vis.ee, or Proton Drive.