A browser profile manager that gives every account its own browser

What a browser profile manager does

A browser profile is everything a browser remembers: cookies, saved logins, local storage, extensions, open tabs and history. When one person runs many accounts in one browser, all of that mixes together. You log out of one account to log in to the next, cookies from one client sit next to cookies from another, and every extension can see every tab.

A browser profile manager gives each account its own profile and lets you open any of them from one list. Multime goes a step further than the profiles built into Chrome or Edge: each Multime profile is its own Chromium-based browser with its own proxy and fingerprint settings, not just a separate folder of cookies.

What each Multime profile keeps separate

Because the masked values come from a seed, a profile stays stable from one session to the next. If you want the opposite for a particular profile, turn on "new fingerprint on every start".

The fingerprint settings per profile include the operating system shown to websites (Windows, macOS or Linux) and its version, the browser brand (Chrome, Edge, Opera or Vivaldi), time zone, language and location (matched to the proxy IP or set by hand), WebRTC mode, masking for canvas, WebGL images, audio and element sizes, graphics card info, CPU cores and port-scan protection.

Chrome profiles compared with a dedicated profile manager

Chrome and Edge let you add profiles, and for a few personal accounts that is often enough. Built-in profiles separate cookies and history. But every built-in profile uses the same network connection and reports the same device details to websites, and there's no list view built for managing hundreds of profiles.

Organizing hundreds of profiles

Take an agency that runs social media for 40 clients. In Multime, each client gets a group. Each profile gets the client's name, a custom number that matches the agency's own client ID, tags such as ads, warm-up or needs-review, and a remark with the last thing someone did. The list has sortable columns, so anyone can sort by last opened and see which accounts nobody has touched this week.

The tools for keeping a large list in order:

• Groups for clients, projects or platforms.
• Tags for status, such as checked or waiting for client.
• Remarks for short notes that show in the list.
• Custom numbers so profiles match the IDs in your own spreadsheet or CRM.
• Sortable columns for name, number, last opened and more.
• Trash with restore, so a deleted profile can come back.
• Bulk edit to change the proxy, tags, remark, start pages or extensions of many profiles at once.
• Bulk create and import from an Excel, CSV or text file, up to 1,000 rows per file. Columns include name, group, tags, platform, username, password, 2FA secret, cookies, proxy and start pages.
• Export to Excel or JSON, with or without cookies, proxies and saved logins.

A smaller case: a seller with three shops on different marketplaces keeps each shop in its own profile, each with its own proxy, saved login and 2FA secret. The live 2FA code shows next to the saved login, so nobody needs to reach for a phone. Marketplace rules about running more than one seller account still apply, so check each marketplace's policy before you open a second shop.

How it works day to day

1. Install Multime on your Mac or Windows PC and download the browser engine in Settings → Kernels. Each engine download is checked against a SHA-256 checksum.
2. Create a profile. Give it a name, a group and a proxy. Leave time zone, language and location set to match the proxy IP.
3. Open it. Multime checks the exit IP through the proxy, sets time zone, language and location to match, and starts the browser. If the proxy doesn't answer, Multime tells you and doesn't open the profile.
4. Log in, work, close. Cookies are saved when the profile closes. Next time it opens with the same tabs and the same session.

Where your profiles live

Multime does not run a cloud for profiles. Profiles, cookies and saved logins live in a local database on your computer. Secrets such as passwords, 2FA keys, proxy passwords and cookies are encrypted with AES-256-GCM, and the key is protected by the operating system (macOS Keychain or Windows DPAPI). The local-first page explains what that means for privacy and backups.

If you work with VAs, your computer hosts the team workspace and profile data comes back to it when a VA closes a profile. See team sharing.

What Multime doesn't do

• Screen size is always your real screen size.
• Media devices, speech voices and custom font lists aren't masked.
• There are no Android or iOS profiles.
• Multime runs on Apple Silicon Macs (M1 or newer) with macOS 13 or later, and on 64-bit Windows 10 and 11. Intel Macs and Linux aren't supported.
• On the Windows engine (Chrome 150), canvas masking is switched off automatically, because that engine build breaks text measuring when it is on.
• Separate profiles keep accounts organized. They don't change any platform's rules, which still apply to every account you run.

Plans

Yearly billing gives you two months free. The Free plan needs no card. Full details are on the pricing page, and the app is on the download page.