Open-source Chrome MV3

VibeNest Sender

A local Gmail batch sender for careful, low-volume outreach. Drop in a batch.json queue, keep Gmail open, and let your own browser handle the repetitive compose-send loop.

View on GitHub Install from source

Local only

No backend, no API keys, no analytics.

Transparent

Apache-2.0 source you can inspect.

Small batches

Randomized delays between sends.

VibeNest SenderGmail found

Drop batch.json

Queue recipients, preserve progress, and export results when the run is done.

[
  {
    "to": "alice@example.com",
    "subject": "Quick question",
    "body": "Hi Alice..."
  }
]

Delay min4s

Delay max20s

Run in progress

16 sent, 1 failed, 7 waiting

Stop

alice@example.compersonal introsent

bob@example.comfollow-upsent

carol@example.comwaiting for next slotnext

dan@example.cominvalid compose statefailed

Next send in 13s. The control window can reopen mid-run without losing queue state.

A small utility for the gap between one email and a full email platform.

VibeNest Sender is not a newsletter platform, CRM, or deliverability product. It is a tiny browser tool for the moments where you already have a short, verified list and want to avoid clicking compose, paste, send, repeat.

Runs in your browser

The extension touches only mail.google.com, finds the active Gmail tab, opens compose, fills fields, and clicks send.

Queue, progress, results

Drag in batch.json, watch every row move through sent or failed, stop anytime, then download vibenest_results.json.

No backend to trust

There is no server where your recipient list can leak. Your queue and progress stay in browser extension storage.

Load unpacked from source.

Clone or download the GitHub repository.

Open chrome://extensions and turn on Developer mode.

Click Load unpacked and select the folder with manifest.json.

Open Gmail, click the toolbar icon, drop in batch.json, and start.

[
  {
    "file": "lead_1",
    "to": "alice@example.com",
    "subject": "Quick question about your project",
    "body": "Hi Alice,\n\nShort personal note.\n\nThanks"
  }
]

Responsible use, very explicitly.

Automated sending can get an account rate-limited or suspended. Use low volume, send only to verified recipients, personalize your messages, honor unsubscribe requests, and follow Gmail policies plus applicable laws such as CAN-SPAM, GDPR, and CASL. VibeNest Sender is unofficial and not affiliated with Google or Gmail.