Donut Browser vs Afina in 2026: Which Antidetect Browser to Choose

Afina is the stronger pick for professional work, where profiles need to be automated through an API, RPA, or the Afina MCP server, shared across employees, and stored alongside working data. Donut Browser fits a narrower solo scenario built around unlimited local profiles, Linux, WireGuard, or open-source auditability.

Both products isolate cookies, local storage, extensions, proxies, and fingerprints, yet they sell fundamentally different business models. Donut is a local browser built on the open-source Wayfern engine and gives away an unlimited number of local profiles for free with no signup. Afina ties profile count to a plan, but in exchange bundles fingerprint management, a local API, visual scripting, a scheduler, mail, and databases, and Base and higher plans add team workspaces.

That is why the short verdict does not come down to whose feature list is longer. A solo developer with no need for built-in orchestration can get by cheaper with Donut. As soon as two or more people run the process, or you need RPA, tasks, the action synchronizer, and access control, Afina delivers a more finished stack at a lower per-seat price.

Donut Browser vs Afina at a Glance

The table below compares only features confirmed by documentation. Where Donut does not publish a technical detail, that is stated directly, without assuming the feature is necessarily missing.

Fingerprint and Network Stack

Donut Browser

Donut Browser ships under AGPL-3.0, collects no telemetry, and by default keeps profiles, passwords, and cookies on the user's device. The free plan needs no account and places no cap on the number of local profiles. Also confirmed: groups, tags, one-click profile launch, per-profile DNS blocking, and a system-default browser mode with a profile picker for links.

The latest confirmed build in the sources is 0.29.3 for macOS Apple Silicon; its release date is not listed in the public documentation. Donut runs on Windows, Linux, and Mac with Apple M1 through M4 chips and newer. Intel Mac is temporarily unsupported, and no mobile builds for iOS or Android appear in the documentation. The project is maintained by a single core developer, which keeps the path from decision to release short for a solo product, but a company should weigh the bus-factor risk of relying on one person separately.

Afina

Afina runs every profile as a separate Chromium process with its own cookies, localStorage, IndexedDB, cache, proxy, and data folder. RPA, tasks, modules, IMAP, databases, team workspaces, and backups all sit next to the profiles. The wider interface reflects a larger set of working entities: a scheduler, state storage, and mail-code retrieval are already built in, so you do not need to piece them together from separate services.

Afina officially supports Windows 10/11 and macOS on Intel and Apple Silicon, where the user gets the full automation stack. Linux stays a separate scenario that requires Donut or another native solution; Afina has no mobile or cloud browser.

Wayfern in Donut builds a fingerprint from realistic configurations rather than random noise. Canvas, WebGL, Audio, fonts, and timezone stay stable within a profile and differ between profiles. Cross-platform fingerprints for a different operating system are part of Pro. Exact names for every fingerprint toggle are not listed in the public documentation.

Afina generates configurations based on real devices and automatically matches the GPU to the host. Users can control the screen, User-Agent, an even number of CPU threads up to 64, RAM at 8, 16, or 32 GB, languages, and timezone. Canvas, WebGL, Audio, and Client Rects each get their own mode. Afina's practical recommendation is simple: add noise to at most one of the four surfaces and leave the rest real, so the signals do not contradict each other.

To check these settings in practice, both browsers were run through the same proxy, 151.242.6.166 (US), on CreepJS (abrahamjuliot.github.io/creepjs), the anti.bot service, the Fingerprint.com demo, and Pixelscan.

CreepJS fingerprints every signal with its own hash. On the Afina profile, the WebRTC block exposes the proxy's external IP through an srflx STUN candidate, the timezone resolves correctly to Eastern Time (America/New York), and CreepJS scores headless similarity at 19%.

The same CreepJS block flags two discrepancies on the Donut profile. First, the WebRTC candidates show only the local address 127.0.0.1; there is no srflx candidate with an external IP, while the Afina profile has one. Second, the timezone resolves correctly as Eastern Time, but the Intl language tag reads fil-US instead of the expected en-US for a US proxy, meaning the profile's locale is not aligned with the proxy's geolocation. Headless similarity for Donut lands at 25% against 19% for Afina; both figures are low (CreepJS's own headless detection scored 0% for both profiles), but Donut is higher on this snapshot. The language mismatch is most likely a setting on this specific profile rather than a systemic Donut limitation, but these are exactly the kind of small parameter mismatches checkers pick up and weigh into their scoring.

A similar check comes from anti.bot: its Live Map scores WebRTC consistency, fingerprint integrity, and session status as separate indicators.

On the Afina profile, anti.bot flagged Fingerprint Integrity and Session Answers with a REVIEW status rather than a final verdict, and the WebRTC protocol got a "Partial (IPv4 comparable)" label.

On the Donut profile, the same service logs three readings worse than Afina's. WebRTC got "Not comparable (IPv4 TURN-only)" instead of "Partial," Fingerprint Integrity dropped to 1/8 with a note about a WebGL rendering conflict, and Session Answers moved from REVIEW to a CONFLICT status. These are readings from one specific test profile and proxy, so they cannot be extended to every Donut launch automatically, but this is exactly the combination of labels anti.bot uses to flag an inconsistent fingerprint.

The Fingerprint.com demo on the Afina profile (Chrome 150 on Windows 11) found no Incognito Mode, Bot, VPN, Browser Tampering, DevTools, virtual machine, or High-Activity Device; the Confidence Score settled at 1.

On the Donut profile (Chrome 150 on Windows 10), the same signal set likewise showed "Not detected" across the board with a Confidence Score of 1; this particular checker recorded no difference between the two browsers.

Pixelscan flagged the Afina profile as "inconsistent" because of a detected proxy (Proxy detected), while the Fingerprint block read "No masking detected" and the automation check read "No automated behavior detected."

The Donut Pixelscan profile was likewise flagged "inconsistent" over the same proxy, and no automated behavior was detected. However, the Fingerprint block froze on "Collecting Data" in the snapshot and never reached a result, while the same block on the Afina profile finished with "No masking detected." An unfinished fingerprint scan is not proof of masking by itself, but for anti-fraud systems an unresolved check is typically read as a risk signal on par with an outright anomaly, which makes it worth flagging rather than dismissing as a slow page load.

The network support Donut confirms through its pricing plans is limited to HTTP and SOCKS5 proxies plus a WireGuard VPN connection. Specifics on proxy authentication, per-IP limits, and the WireGuard configuration format are not disclosed in the public documentation. Confirmation of UDP, QUIC, HTTP/3, or WebRTC routing over the proxy is likewise missing, so none of that should be credited to Donut just because SOCKS5 or WireGuard exist.

An independent WebRTC test on browserleaks.com for the Donut profile shows the service seeing only the local loopback 127.0.0.1; no public STUN/srflx candidate appears in the report, and no public IP is disclosed. That does not confirm a public leak, and the service itself flags "No Public IP Leak" as a passed check, but the same fact also means this profile's WebRTC connection was not recorded as routed through the SOCKS5 proxy: as noted above, Donut's public documentation offers no confirmation of that routing either.

Afina has no WireGuard and does not accept IPv6 proxies. Instead, its compatible SOCKS5 with UDP ASSOCIATE routes WebRTC, QUIC, HTTP/3, and WebTransport through the proxy. A built-in check can stop a profile after an unsafe country change. In real-world use, the result still depends on the provider: a SOCKS5 label does not guarantee UDP support.

Profiles, Import and Daily Work

Donut imports cookies and extensions from Chrome, Edge, and Brave. A fuller official list of browsers, cookie file formats, clear-on-close modes, or hard-deletion rules is not in the public documentation. This corrects an important inaccuracy from an earlier draft, where those capabilities were described as confirmed.

Donut's advantage is a low barrier to entry. Groups and tags keep profiles organized, DNS blocking toggles independently, and the real limit on Free is your own machine's resources. If the job is manually launching many local environments, you do not have to pay for the slots themselves.

Afina creates profiles manually, in bulk, or through the API. It has cloning, a trash bin, a one-time profile with automatic deletion, and bulk assignment of proxies, groups, tags, and extensions. Migration is supported from AdsPower, Dolphin Anty, and Vision. Cookies import from JSON or TXT after a profile restart, and Cookie Robot visits a set list of URLs at a controlled depth.

Afina's Synchronizer mirrors clicks, input, scrolling, and navigation across at least two profiles at once. Donut also includes a Profile Synchronizer in Pro, but detailed public limits on window count are not listed.

API, MCP and Automation

Free Donut includes a Profile Management API and MCP, and Pro at $99 adds a Browser Manipulation API and MCP. The exact endpoint count, local server address, authentication scheme, MCP transport, the split of start/stop commands between the two tiers, and whether it actually returns HTTP 402 are not listed in the public documentation.

Confirmed MCP clients are Claude, Cursor, and a custom AI agent. Pro caps automation at 100 requests per minute and includes 200 hours of remote execution and Cookie Bot. Donut also claims compatibility with Playwright and Selenium. For a developer who already has a scheduler, a database, and monitoring in place, that may be enough.

Afina exposes all 79 REST endpoints across 11 modules on every plan. The API covers profiles, cookies, proxies, browser actions, scripts, tasks, modules, mail, variables, and databases; the queue accepts up to 128 concurrent requests, and the request body is capped at 16 MB. There are no webhooks yet, so an external system reads status by polling.

Afina's MCP server exposes 92 tools and 5 resources. Visual RPA supports conditions, waits, debugging, and visible, headless, and browserless runs. Custom logic can be moved into a Node.js module with npm dependencies; an Ed25519 signature lets you detect a tampered file before it runs. Cron triggers, queues, retries, and time windows turn a single script into a managed process.

Team Collaboration and Security

Donut on Free keeps data local and collects no telemetry. Solo at $29 adds 20 cloud profile backups and a Nightly Cookie Bot for up to 40 hours a month for commercial use with email support, Pro raises that to 50 backups and 200 hours of Cookie Bot, and Team syncs up to 100 profiles. Cloud sync uses end-to-end encryption with a password known only to the user; the specific algorithm and key model are not listed in the public documentation. A self-hosted Docker sync server is available, and Cloud Run for round-the-clock Linux profiles is in beta.

Team costs $199 a month, includes two seats, team collaboration, and profile handoff; each extra seat costs $99. A detailed roles-and-permissions matrix for Donut is not listed in the public documentation. Enterprise offers an annual contract, SSO, audit logs, custom SLAs, self-hosted infrastructure, and dedicated Slack support, but pricing is individual.

Afina has Personal and Team workspaces, Owner and Worker roles, and granular permissions to start, stop, download from the cloud, add, and hand off profiles. When a worker deletes a profile, it returns to the owner rather than being erased outright, which lets you revoke access without sharing a common password.

Afina's local data is encrypted with AES-256-CBC using a key file and master password, and secret variables are protected through libsodium's Sealed Box. Neither is exposed through the API or MCP. There is auto-lock, extension integrity checks, local backups, Google Drive, and Afina Cloud. The zero-knowledge trade-off is strict: support cannot recover a lost key or master password.

Donut Browser and Afina Pricing in 2026

Donut's Free plan is best suited for manual local work: it gives you unlimited profiles, Wayfern, proxy, WireGuard, profile management through the API and MCP, cookies, and extensions. Cloud backups, however, start at Solo for $29, browser manipulation is Pro-only, and team collaboration is Team-only.

Pro at $99 unlocks browser manipulation through the API and MCP, cross-platform fingerprints, Synchronizer, 50 cloud backups, 200 hours of remote execution and Cookie Bot, and 100 automation requests per minute. Team at $199 adds sync for 100 profiles and two seats. A quarterly subscription gives a 10% discount, and an annual one gives 20%.

Afina has no permanent free tier, but it offers a four-day Base trial. Lite costs $9 for 20 profiles, Starter costs $19 for 50, Base costs $29 for 100 profiles and 2 users, Standard costs $69 for 300 profiles and 5 users, and Max costs $129 for 1000 profiles and 10 users. API, RPA, MCP, and the other automation tools are not gated behind the higher plans.

Both screenshots match the live public pricing pages as of August 2026; the table below rolls these plans into a single comparison across typical team scenarios.

An earlier draft of this article credited Donut with refund terms, cloud profile deletion after cancellation, and a separate proprietary license. None of those details turned up in the NotebookLM sources, so they are excluded from this comparison. What is confirmed is commercial use starting at Solo and the project's open AGPL-3.0 license.

Which Antidetect Browser to Choose

Donut Browser is stronger in four specific scenarios: unlimited local profiles at no cost, running on Linux, WireGuard connectivity, and open-source auditability. It also makes sense for a developer who already has their own scheduling system, state storage, and monitoring and wants to use the API or MCP as an integration point. Its limits are just as specific: browser manipulation requires Pro, Intel Mac is temporarily unsupported, and the technical boundaries of its API, MCP, and team roles are only partly documented.

Afina makes more sense once you need to coordinate several people or build a process inside a single app. Its edge comes from 79 API endpoints, RPA, Cron tasks, Node.js modules, IMAP, databases, 92 MCP tools, and granular access rights. At team scale, the price gap is large: $29 versus $199 for two seats and 100 profiles.

Afina has clear platform boundaries: it does not run on Linux, has no WireGuard, does not accept IPv6 proxies, and profile count is tied to a plan; a lost encryption key cannot be recovered. On Windows and macOS, a ready automation pipeline with team permissions offsets those trade-offs, while Donut remains the pick for a local, developer-driven solo workflow.

Download