Capture Complete Login States
Save cookies, localStorage, and sessionStorage together—then restore the state with its original domain context.
Private by Design · v4.0.0
Your Browser.
Your Browser.
Every Session.
Under Control.
Capture complete login states, switch between accounts in seconds, protect TOTP secrets, and restore everything without surrendering your data to a cloud service.
✓ Chrome & Firefox✓ Open Source✓ Local-First
Work Account14 cookies · Ready
OWI VaultAES-256-GCM
2FA Protected6 live codes
Drag to Explore
3 LayersCookies + local + session storage
AES-256Authenticated OWI encryption
5 MinutesOptional remembered unlock
2 BrowsersChrome MV3 + Firefox MV3
Complete Session Control
More Than a Cookie Manager.
SesWi treats a login state as a complete system: cookies, browser storage, domain context, timestamps, encryption, and the 2FA credentials that keep the account usable.
Live TOTP Vault
Store, scan, and generate rotating 2FA codes without leaving the extension.
482 193
Import Almost Anything
Review and restore JSON, Netscape, Cookie Editor, Cookie header, key-value text, and encrypted OWI files.
✓ session-work.owi
✓ cookies.txt
✓ cookie-editor.json
✓ cookies.txt
✓ cookie-editor.json
Current-Tab Command Center
Clean cookies, storage, history, and cache—or export current-tab data without saving a permanent session.
Alt+Q Open SesWi
Ctrl+X Clean Current Tab
Ctrl+D Lock Immediately
Ctrl+X Clean Current Tab
Ctrl+D Lock Immediately
Browser Commands
Move at Keyboard Speed.
Open SesWi from anywhere, then use Current Tab tools for deliberate site-data and window cleanup.
AltQ
Open SesWi Anywhere
Bring the popup into focus from any normal browser tab.
Press→SesWi Opens
CurrentClean
Clear Other Tabs
Use the Window tab in Clean Current Tab to close every other tab in the current window while keeping the active tab open.
Review→Confirm→Keep Active Tab
Local-First Security
Your Vault Stays Yours.
Master Password protection, authenticated encryption, and an extension-memory unlock cache protect sensitive data without turning SesWi into another cloud account.
Protection Across the Full Lifecycle
- 1AES-256-GCM BackupsOWI exports authenticate and encrypt session and TOTP payloads.
- 2Master Password LockProtected content never renders while the popup is locked.
- 3Memory-Only RememberingThe optional 5-minute unlock cache stays out of persistent storage.
- 4Recovery FlowA dedicated full-page recovery experience handles forgotten passwords.
Cookies2FA SecretsBrowser StorageOWI Backups
Build & Install
From Source to Browser.
SesWi is open source. Build the target for your browser, then load the generated folder as an unpacked or temporary extension.
Chrome
Manifest V3$ npm install$ npm run build:chromeLoad unpacked: .output/chrome-mv3
Open chrome://extensions, enable Developer mode, then choose “Load unpacked.”
Firefox
Manifest V3$ npm install$ npm run build:firefoxTemporary add-on: .output/firefox-mv3
Open about:debugging and load the generated manifest as a temporary add-on.
Questions
Know Before You Install.
The important details, without hiding behind marketing language.
Does SesWi sync data to a server?
No. The current architecture is local-first. Cloud backup is a future roadmap item, not a hidden dependency.
What does a saved session contain?
A complete session can include cookies, localStorage, sessionStorage, original URL/domain metadata, and timestamp/index metadata.
Are JSON exports encrypted?
No. JSON, Netscape, and Cookie Editor formats are readable raw formats. Use OWI when you need an encrypted backup.
Can SesWi restore every authentication flow?
Most cookie and storage-based sessions work, but complex SSO or device-bound authentication may still require refresh or manual verification.
Take Back Control of Every Browser Session.
Build SesWi, inspect the source, and turn account switching from repetitive work into a deliberate command.
View Source on GitHub ↗