Profiles

A profile is one isolated identity: its own browser data directory, cookies, and a coherent fingerprint. Every field below is optional except the name; everything else defaults to "derive it from the seed."

Basics

FieldWhat it does
NameRequired. Shown everywhere in the profile grid and pickers.
GroupOptional. Organizes the grid and drives the group filter chips: pick an existing group or create one inline.
NotesFree text, for your own reference only: never sent anywhere.
Start URLsUp to twenty, opened as tabs the moment the profile launches. Real page addresses only — including the bare example.com form people actually type. A javascript: entry is not a page to visit but code to run inside a profile holding your logged-in sessions, so it is refused.

Fingerprint & engine

Every profile has a fingerprint seed that deterministically derives its entire identity: user agent, screen, hardware, canvas/WebGL/audio noise, fonts, timezone, and locale all stay internally consistent instead of being randomized independently (the thing most fingerprint spoofing gets wrong). The same seed always produces the same fingerprint, so a profile's identity is stable across relaunches.

FieldWhat it does
OSWindows, macOS, or Auto: Auto derives it from the seed for a natural distribution across profiles you create.
Chrome versionPin a specific real build (e.g. 150.0.7871.124) or leave on Auto for the current default engine. The faked user agent and client hints always match whichever engine actually launches.

Proxy

Bind a proxy from the Proxies page (HTTP, HTTPS, or SOCKS5, with optional auth) or leave it unset for a direct connection. Use the proxy list's Test button before relying on one: it reports exit IP, geo, and latency through the actual proxy. The profile's timezone follows the proxy's geo when one is bound (unless you set a timezone yourself under Advanced, which wins), and WebRTC is leak-prevented so the browser's real IP can't leak around the proxy.

Platform quick-login

Pick a platform from the preset list (Facebook, Google, Amazon, Instagram, TikTok, X/Twitter, LinkedIn, Reddit, Pinterest, eBay, Discord, Shopify) or choose Custom and supply your own login URL. When set, that login page opens ahead of any Start URLs on launch: second from the left, after the profile's own fingerprint page, which always takes the first tab so the identity the profile is running under is the first thing you see.

That order is the same on every launch. Relaunching a profile does not reopen the tabs a second time: what the browser brought back from the previous run is cleared first, so the strip does not grow each time you open it. (If you switch on Restore last session in Settings, the tabs you had open do come back; that is what the setting is for, and the Start URLs skip anything already among them rather than opening it twice.)

You can also save a username/password for the platform right in the profile editor.

The saved login credential never leaves this machine. It's encrypted at rest locally and is deliberately excluded from cloud sync: profiles themselves sync across your machines, but a saved password only exists on the machine you typed it into.

Manual fingerprint overrides

Collapsed under "Advanced" in the profile editor. Every field defaults to Auto (derive from the seed, the same as before this existed): set only the ones you need a specific value for.

FieldWhat it does
TimezoneAn IANA zone, e.g. America/New_York. Set here, it wins over the timezone derived from a bound proxy’s geo. The capitals matter: Chrome takes America/New_York and refuses america/new_york. A zone it does not recognise is ignored rather than applied — the editor says so as you type, and the profile falls back to its proxy’s zone, then its own.
LanguageA BCP-47 tag, e.g. en-US. Drives navigator.languages, Accept-Language, and the browser's own locale, so dates and numbers on a page are formatted the way that language formats them.
Screen width / heightBoth must be set together: a lone width or height is ignored.
WebRTC modeAuto (leak-controlled, the default), Disabled (removes RTCPeerConnection entirely), or Real (no patching at all).
Hardware concurrencyOverrides navigator.hardwareConcurrency (CPU core count).
Device memoryOverrides navigator.deviceMemory, in GB.

Groups & bulk actions

Create, rename, and delete groups from the Profiles page: an empty group persists even with nothing in it yet. Filter chips let you narrow the grid to one group at a time. Multi-select a set of profiles to launch, stop, delete, move to a group, or assign a proxy to all of them at once instead of one at a time.

Session import/export

Import or export a profile's cookies in the common Cookie-Editor / EditThisCookie JSON format: a fast way to move an already-logged-in session into or out of Parallel.

Cloud sync

Signed in, your profiles, proxies, groups, and RPA processes all sync to your account: sign in on another machine and they're already there. Two things are deliberately not synced and stay local to each machine: