Create an open letter and sign it together

A free, open civic tool for collective action. No cookies, no trackers. 3,600+ open letters, 490,000+ signatures.

3,741
open letters
508,966
signatures
NEW

Invitation-only letters

Need to make sure every signature is genuine? Limit who can sign with personal invite links or email domain restrictions.

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Stop AI bots

AI can generate thousands of fake signatures in seconds. Invitation-only letters ensure every signer is a real person.

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Web of trust

Each signer can invite others. See who invited whom — a transparent chain that strengthens your letter.

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More weight

100 verified, invited signers carry more weight than 10,000 anonymous ones.

Featured Open Letters

Since March 2020, the avenue Van Vollenhoven in Schaerbeek is car-free. The decision was motivated by the need for social distancing during the COVID-19 crisis. For eight months, the inhabitants of Schaerbeek took great advantage of the space. Children learned to ride bicycles and skate. Older people could walk around and enjoy social life at a safe distance. PRMs and cyclists could safely cross the park to the other side of Schaerbeek....

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Dear Elke Van Den Brandt, We, citizens of Brussels, kindly ask you to make Sunday Without Cars every Sunday at least till the end of September. ...

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We are not against cars. They do have their utility. But why privatise most of the public space in our commune for those cars that make our streets quite dangerous for our kids? Can’t we share this public space?...

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Latest Open Letters

Dear Professor Duncan Ivison, Re: Pervasive Culture of Sexual Harassment in the School of Medical Sciences...

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To: Members of the Northern Ireland Legislative Assembly. Date: 16 April 2026 Subject: Petition for the Incorporation of a Jade’s Law equivalent into the Criminal Justice (Sentencing etc.) Bill ...

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Dear Social Workers Union We, the undersigned, as members of the Social Workers Union, hereby lodge a formal complaint regarding the 2026 election for General Secretary. We do not believe the union’s current approach to the election process ensures fairness towards all candidates and proper communication and information sharing with members, for the following reasons:...

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3 April 2026

Safer Crosswalk on Antioch Pike

48 signatures

On February 21st 2026 Jerry F Robinson was struck by a car and killed while crossing Antioch pike at the crosswalk by the Woodbine Fresh Market. Metro Police have published a photo showing that the car entered the painted median at the crosswalk. The driver fled the scene....

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Dr Priya Singh Chair, Board of Trustees National Council for Voluntary Organisations A letter of concern regarding NCVO’s strategic direction and its implications for small charities...

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How it works

1

Write your letter

Create your open letter in one or multiple languages. Add images and format with markdown.

2

Choose public or invitation-only

Public is free and open to everyone. Invitation-only (€10) lets you control who can sign.

3

Share and collect signatures

Share the URL or send personal invitations. Signatures are verified via email or passkey.

4

Make an impact

Send your letter to decision-makers with verified signatures that carry real weight.

Aligned with your values

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🌍Inclusive: publish your open letter in different languages 🌍

FAQ

What is an Open Letter?

It's a public letter that you write to address together your company, organization, institution, city, government.

What is the difference with a petition?

The goal of a petition is to have as many people as possible to sign it. The goal of an open letter is to have people relevant to topic to sign it. It's not the same to have a petition to ask our government to make wearing a mask mandatory than having an open letter signed by 100 doctors, or a petition to ask Google to stop supporting the fossil fuel industry than an open letter signed by a 1000 of their employees. There is no author to an open letter, only co-signatories. No email address is collected. Who wrote it doesn't matter. Who signed it does.

Why do I need to provide an email address to sign a letter?

Yes! With our invitation-only letters (€10), you can control exactly who signs your letter using personal invitation links or email domain restrictions. Public letters remain free and open to everyone.

What about privacy?

We have no cookies, no trackers, no 3rd party script or ads. We only ask for your email address to confirm your signature (see question above).

Can I limit who can sign it?

Yes! With our invitation-only letters (€10), you can control exactly who signs your letter using personal invitation links or email domain restrictions. Public letters remain free and open to everyone.

How to provide feedback or request a feature?

Start a conversation on our collective.

How to contribute?

You can contribute contribute code on Github 🧑🏻‍💻 or you can make a financial contribution to our collective 💰. Thank you for your support! 🙏

How to remove or edit my signature?

In your confirmation email, you have a unique link to edit your signature. Keep it safely for future use (and don't share it with anyone!). For older signatures (before May 2025) or if you have lost your confirmation email, you can use this Google Form.

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