How to Share Vitest Test Results with Your Team

Vitest’s HTML reporter is excellent: interactive, fast, and genuinely useful for debugging. But it generates local files. When your teammate asks “what failed?”, you can’t just send them a link. You end up screenshotting terminal output or walking them through downloading CI artifacts.

After vitest run, your HTML report lands in a local directory. To share it with your team, you need to get that file to them somehow. Here’s what most teams do:

Common (Bad) Solutions

1. CI artifacts

GitHub Actions keeps artifacts for 90 days max, other CI systems are shorter
Finding the right artifact means clicking through workflow runs
Recipient downloads a zip, extracts it, opens index.html locally
QA might not even have CI access

2. Email or Slack the file

“Here’s the test report” with a zip attachment
Recipient has to download, extract, open in browser
Version confusion when multiple runs are in flight

3. Upload to S3 manually

Works, but someone has to set up the bucket, permissions, and cleanup
Manual step every time, so it gets skipped when things are busy

4. Paste terminal output

Loses all the interactive HTML goodness
Hard to parse in a Slack thread
Can’t reference it later

Better: Hosted Vitest Reports with Shareable Links

The fix is straightforward: upload your Vitest reports to a hosting service after every CI run. Every test run gets a permanent URL that anyone on your team can open.

What This Looks Like

CI runs your Vitest tests
Reports upload automatically
You get a URL like https://app.gaffer.sh/reports/abc123
Share it in Slack, GitHub PRs, Jira, or anywhere else
Anyone with access sees the full interactive report

No downloads. No manual steps. No expiring artifacts.

Step 1: Configure Vitest Reporters

Make sure you’re generating output Gaffer can parse. CTRF gives the richest analytics:

npm install vitest-ctrf-json-reporter --save-dev

import { defineConfig } from 'vitest/config'

export default defineConfig({
  test: {
    reporters: [
      'default',
      ['vitest-ctrf-json-reporter', { outputDir: '.', outputFile: 'ctrf-report.json' }],
    ],
  }
})

If the reporter fails with ENOENT, see why jest-ctrf-json-reporter throws ENOENT. Gaffer also accepts Vitest’s built-in HTML and JSON reporters if you prefer those; the Vitest JSON reporter output format is documented field by field. If you also want to set up a Vitest coverage report and track it across runs, that’s a separate upload step covered in the coverage guide.

Step 2: Add the Upload Step to CI

GitHub Actions:

- name: Run tests
  run: npm test

- name: Upload to Gaffer
  if: always()
  uses: gaffer-sh/gaffer-uploader@v2
  with:
    gaffer_upload_token: ${{ secrets.GAFFER_PROJECT_TOKEN }}
    report_path: ./ctrf-report.json
    commit_sha: ${{ github.sha }}
    branch: ${{ github.ref_name }}

GitLab CI:

test:
  script:
    - npm ci
    - npm test
  after_script:
    - |
      curl -X POST https://app.gaffer.sh/api/upload \
        -H "X-API-Key: $GAFFER_PROJECT_TOKEN" \
        -F "[email protected]" \
        -F 'tags={"commitSha":"'"$CI_COMMIT_SHA"'","branch":"'"$CI_COMMIT_REF_NAME"'"}'

After upload, Gaffer returns a URL. Share it anywhere: Slack, GitHub PR comments, Jira tickets. Recipients see the full report in their browser.

For people outside your organization, you can generate a public share link with configurable expiration. They view the full interactive report without needing a Gaffer account.

Slack and Webhook Notifications

Instead of checking CI manually, get notified when tests finish:

Slack integration:

Pass/fail summary posted to your channel
Direct link to the full report
Filter by branch: only notify on main, skip feature branches

Webhooks:

Send test results to any endpoint
Integrate with your existing alerting or workflow tools
Trigger custom actions on failure

No more “did the tests pass?” messages. Your team sees failures as they happen, with a link to investigate.

GitHub Integration

Commit statuses show test results directly on PRs. No clicking through to CI logs. You see pass/fail right on the commit.

One Dashboard for Every Suite

Most JavaScript teams run Vitest for unit tests and Playwright or Cypress for end-to-end. Gaffer aggregates multiple test frameworks into one dashboard, so unit and e2e results land in the same place instead of separate report folders.

What About Flaky Tests?

Vitest’s --retry flag handles flaky tests within a single run. Gaffer tracks flakiness across runs, identifying tests that sometimes pass and sometimes fail over time. Different problem, complementary solution.

Get Started

Gaffer’s free tier includes 500 MB of storage with 7-day retention. Paid plans offer extended retention up to 90 days.

Start Sharing Vitest Reports - Free

Gaffer