Visual timelines sync your async E2E tests—no more timing guesswork
E2E tests for asynchronous flows fail flakily due to unpredictable timing and race conditions.
TestTempo records and visualizes every async event (API calls, state changes) as interactive timelines during Cypress/Playwright runs. Spot races visually, add precise sync points with drag-drop, and export robust test scripts. Transform flaky chaos into synchronized reliability for React/Node apps.
Test automation engineers and QA developers using tools like Cypress or Playwright for E2E testing in React/Node.js apps with async operations
Interactive timeline debugger for async flows, bridging gap between blackbox E2E and whitebox debugging
supportive
Capture full async event traces from tests
Highlight overlaps and timing gaps in timeline
Drag to add waits/polls on visual events
Generate Cypress/Playwright commands from timeline
Replay test with adjustable speeds
Pre-built syncs for common React async libs
Team comments on timelines
Measure async latencies over runs
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| created_at | timestamp | No |
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| test_name | text | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| session_id | uuid | No |
| type | text | No |
| timestamp | timestamp | No |
| payload | jsonb | Yes |
Relationships:
/api/sessionsStart new session
/api/eventsStream events
/api/sessions/:id/timelineFetch timeline data
/api/sessions/:id/exportGenerate test code
No export
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 40 | 3% | $111 | $1,332 |
| Month 6 | 450 | 6% | $999 | $11,988 |
Timelines turn flaky E2E tests into synced perfection for Cypress & Playwright.
Build Chrome extension MVP, post in Cypress Discord and QA Slack groups, convert first users with personalized setup calls.
Built-in
No visual timelines or sync editor
Interactive async visualization
Session replay
General debugging, not test-specific
E2E test timeline focus
Data moat from anonymized timelines training better detectors
Component testing rise exposes E2E async pains; viz tools like Chrome DevTools inspire test parallels
Event capture overhead
Sampling + opt-in
Extension approval
Web-first MVP
Success: 8/10 positive feedback
Success: 15 use exports
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