Turn an email into real impact.
Open 1ClickImpact while you write, and in one click fund trees, ocean cleanup, carbon capture, coral restoration or a donation, credited to the person you're emailing. A line with their impact certificate can be added to your draft.
- Reads only your recipients
- Free add-on
- Try free in sandbox
Plant treesfrom $0.40 a tree
Clean oceansfrom $0.60 a lb
Capture carbonfrom $0.40 a lb
Restore coralfrom $2.20 a fragment
Donate to a causefrom $0.10 per $1
Per unit, billed through your own 1ClickImpact account. See full pricing.
How it works
Two entry points: the side panel is where you set things up, and the compose window is where impact is added.
1Set it up once, in the side panel
Open 1ClickImpact from Gmail's right-hand side panel. Add your 1ClickImpact API key, choose what a single click funds (trees, ocean cleanup, carbon capture, coral restoration or a donation) and decide whether the recipient gets a confirmation email.
2Open it while you write
Composing an email? Open 1ClickImpact from the bottom of the compose window. It shows who will be credited, the person you're writing to, and lets you change the impact and amount just for this email.
3One click, real impact
Press Add impact and the impact is funded and credited to your recipient. Optionally, one line is written into your draft, for example “🌱 We just funded 5 trees for you. Here is your impact certificate”, linking to the certificate.
What your recipient gets
The impact is credited to them, not to you. So the certificate carries their name, and they can follow it all the way to the ground.
- Impact initiatedGmail · one click
- Donation receivedReceipt sent
- Transferred to the project partnerTrees for the Future · Homa Bay 20
- Impact completedPhotosGPSCertificate
Try everything free first
The add-on has two modes. In Sandbox, a test key funds nothing and charges nothing, so you can walk through the whole flow before going live. Switch to Production with your live key when you're ready. Impact you fund in production is billed by 1ClickImpact based on usage. The add-on itself is free.
What you need
- A 1ClickImpact account and API key. Get one here.
- A Gmail or Google Workspace account. Install the add-on and open it in Gmail.
Running in a few minutes
Two things to do once — get a key and install the add-on — and then it is a button inside the email you were writing anyway.
- 1
Get your API key
Create a free 1ClickImpact account, then open Account › API Keys. You get two: a sandbox key starting
test_and a production key startinglive_. - 2
Install the add-on
Install it from the Google Workspace Marketplace, then open Gmail and pick 1ClickImpact in the right-hand side panel. It asks for four permissions: run inside Gmail, read the recipients of the draft you have open, write one line into that draft, and reach the 1ClickImpact API.
- 3
Try it in sandbox, then go live
Set Mode to Sandbox, paste your
test_key and press Save. Write yourself an email, open 1ClickImpact from the compose toolbar and press Add impact — nothing is funded and nothing is charged. Switch to Production when it all looks right.
What it can and can't see
The add-on reads the least it can, and only while you're using it.
What it reads
- The recipients of the email you're writing, so the impact is credited to the right person. They are read only when you open the add-on in that compose window.
- Your draft, only to insert one line of text when you press Add impact with that option switched on.
What it never touches
- The subject, body or attachments of any email.
- Any other message in your mailbox.
- Your API keys are stored in your own Google account's add-on storage, shown masked, and nothing is sent until you press Add impact.
Full details are in our Privacy Policy and Terms of Service. Our use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.
Gmail and Google Workspace are trademarks of Google LLC. 1ClickImpact is not affiliated with or endorsed by Google.
Frequently asked questions
Still have a question? Our team is happy to help.
Yes. You bring your own API key, and only the impact you fund in production is billed — from $0.40 a tree. See pricing.
No. It reads the recipient addresses of the draft you have open, and only while the add-on is open in that compose window. It never reads subjects, message bodies or attachments, and it makes no Gmail API calls.
The person in the To field. They are named on the certificate and can follow the impact from the donation through to the planting. With several recipients, the first is credited and the card tells you so.
Yes. It is a template you can edit, with {emoji}, {impact}, {name} and {certificate} placeholders — or you can switch it off and add impact without touching your draft.
No. If you leave notifications on, they get a confirmation email with their tracking link. If you turn them off, the impact is still credited to them, quietly.
Yes — that is what Sandbox mode is for. A test key funds nothing and charges nothing, and every part of the add-on behaves the same way it does in production.
Make your next email count
Get an API key, add it to the add-on, and fund impact for the people you write to. Questions? We're happy to help.