T3 T3rnel Browser

Comparison

Verified against publicly documented behaviour as of 23 August 2026.

Versus MCP browser automation tools

T3rnelChrome DevTools MCPPlaywright MCPmcp-chromeBrowser UseBrowser MCPNanobrowserAgent BrowserStagehand
Your existing profileYesNoNoYesNoYesYesNoNo
Logged-in sessions workYesNoNoYesNoYesYesNoNo
Real browser fingerprintYesAutomation flagsAutomation flagsYesAutomation flagsYesYesAutomation flagsAutomation flags
Tool count97~26~25~20~1511~10~15~10
CDP trusted inputYesYesNoYesNoNoNoNoNo
Contenteditable editorsYesNoYesNoYesYesNoNoNo
Credential redactionYesNoNoNoNoNoNoNoNo
Approval gate that refusesYesNoNoNoNoNoNoNoNo
Prompt-injection flaggingYesNoNoNoNoNoNoNoNo
Delta snapshotsYesNoNoNoNoNoNoNoNo
Time-travel timelineYesNoNoNoNoNoNoNoNo
Export Playwright/Cypress codeYesNoNoNoNoNoNoNoNo
CSS inspectionYesNoNoNoNoNoNoNoNo
Human-facing GUISide panelCLICLIMinimalLibraryMinimalSide panelCLILibrary
Local-onlyYesYesYesYesOptional cloudYesYesYesCloud option
PriceFree + $29.99FreeFreeFreeFreeFreeFreeFreeFree + paid cloud
LicenceProprietaryApache-2.0Apache-2.0MITMITProprietaryApache-2.0MITMIT
Color pickerYesNoNoNoNoNoNoNoNo
React component inspectionYesNoNoNoNoNoNoNoNo
Clear cache / hard reloadYesNoNoNoNoNoNoNoNo
Structured form fillingYesYesYesYesYesYesNoYesYes
One-call form clearingYesNoNoNoNoNoNoNoNo

Versus CSS inspection tools

T3rnel ProCSS ScanCSS PeeperVisBug
Hover inspect and copyYesYesYesPartial
Pseudo-classes, media queries, keyframesYesYesNoNo
Authored unit preservationYesYesNoNo
Tailwind conversionYesYesNoNo
styled-components / Emotion / JSX outputYesNoNoNo
Honest partial reporting on cross-origin sheetsYesNoNoNo
Full-page screenshots and annotationYesNoNoNo
Visual regression testingYesNoNoNo
Test code exportYesNoNoNo
AI agent controlYesNoNoNo
Price$29.99 one-time~$100–120 lifetimeFreeFree

Versus screenshot extensions

T3rnelGoFullPageAwesome ScreenshotFireshot
Full-page stitched captureYesYesYesYes
Sticky header pinningYesPartialPartialPartial
Cookie banner auto-dismissYesNoNoNo
Blur / redactYesNoYesYes
Visual regression baselinesYesNoNoNo
Programmatic capture for agentsYesNoNoNo
Works without an accountBrowser control onlyYesAccount for cloudYes

Versus color picker extensions

T3rnelColorZillaEye DropperPika
Eyedropper from any pixelYesYesYesYes
Palette from the whole pageYesYesNoNo
Export hex / rgb / hsl / CSS varYesYesPartialYes
MCP access for agentsYesNoNoNo
Works in side panel, not a new tabYesPartialNoNo

Versus React debugging extensions

T3rnelReact DevToolsLocatorJSReactime
Component treeYesYesPartialYes
Props and hooks inspectionYesYesNoYes
Highlight element from componentYesYesYesNo
MCP access for agentsYesNoNoNo
Works without an accountBrowser control onlyYesYesYes

Versus form filler extensions

T3rnelFake FillerForm FilleriMacros
Detect visible form controlsYesYesYesYes
Fill from JSON / agent instructionsYesNoPartialPartial
Human approval before submitYesNoNoNo
MCP access for agentsYesNoNoNo
Works without an accountBrowser control onlyYesYesAccount for cloud

Versus cache clearing extensions

T3rnelClear CacheCache KillerEmpty Cache Button
Clear cache for current originYesYesYesYes
Hard reload current pageYesYesPartialYes
Clear cookies / site dataYesPartialNoPartial
MCP access for agentsYesNoNoNo
Works without an accountBrowser control onlyYesYesYes

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