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Flattr AB
Available in English
Founded 2010
Headquarters Malmö, Sweden
Owner Eyeo GmbH
Founder(s) Peter Sunde and Linus Olsson
Industry Micropayments
Slogan(s) Fund creativity
Website flattr.com
Commercial Yes
Registration Required

Flattr is a Sweden-based microdonation provider founded by Peter Sunde and Linus Olsson and launched in March 2010.[1]


In March 2010 Flattr launched via an invitation-only basis[2] and then opened to the public on 12 August of the same year.[3][4]

Flattr is a project started by Peter Sunde and Linus Olsson. Users are given the choice to pay any monthly donation (provided a minimum of 2 euros) which is then split equally among websites, pages or service accounts they selected using a flattr button. This is comparable to an Internet tip jar. The word "flattr" is used as a verb, to indicate payments through the Flattr system. Upon clicking a Flattr button, users are logged into the Flattr site, thus said to be "flattring" the page they are on. Sunde said, "We want to encourage people to share money as well as content."[2]

In the beginning of the service, Flattr itself took 10% of all users' monthly flat rate, however, this fee would later be reduced.[2]

In December 2010, Flattr received large-scale attention when it was tweeted to be a method of donating money to WikiLeaks, which had recently been cut off by PayPal, Visa, and MasterCard.[5]

On 28 April 2011, Flattr announced by email that they would not require users to flattr others before they could be flattrd themselves, starting from 1 May 2011.

On 16 April 2013, Twitter announced that they would no longer allow Flattr users to Flattr favorites, citing commercial confusion problems they believed would occur between users.[6]

In May 2016, Flattr partnered with the developer of the ad-blocking browser extension Adblock Plus to create Flattr Plus, a service which allows users to automatically distribute a designated budget of monthly payments to web publishers based on their engagement. The service was conceived as a way for users to support online publishers as an alternative to advertising.[7]

On 5 April 2017, Adblock Plus publisher Eyeo GmbH announced that it had acquired Flattr for an undisclosed amount. Flattr also announced a beta of an overhauled "zero-click" version of the service adapted from the Flattr Plus concept.[8] The new version launched publicly in October 2017.[9]


A number of platforms are supported including WordPress, Blogger, and Joomla among many others. To foster faster adoption, including on sites that may not natively support Flattr, a Firefox plugin, Överallt ("everywhere" in Swedish) has been developed.[10] It allows the equipped browsers to parse a simple plain-text tag ([Flattr=ID]) and replace it inline with the Flattr widget.

For real-world or non-web content

Flattr can also be used for micro-donations to offline content, including those which are non-computer based, by way of mobile device recognition of QR codes. A number of existing services[11] exist to allow for the "flattr-ing" of non-web-based content, including offline content, using many smartphones' capability of recognizing physical QR codes. Utilizing QR codes attached to Flattr buttons allows for donations to the specific physical or non-web-based item of choice.

Corporate affairs


In 2012 Flattr received €1.6 million in funding from Passion Capital Investments, LLP and Federico Pirzio-Biroli.[1][12]

As part of its collaboration with Flattr, Eyeo GmbH also made an investment in Flattr.[7]



  1. ^ a b "Flattr secures $2.1 million in venture funding". Financial Deals Tracker. 16 February 2012. 
  2. ^ a b c "Pirate boss to make the web pay". BBC News. February 12, 2010. Retrieved May 2, 2010. 
  3. ^ Steve O'Hear (August 12, 2010). "Flattr opens to the public, now anybody can 'Like' a site with real money". TechCrunch Europe. Retrieved August 13, 2010. 
  4. ^ Flattr now open for everyone! Archived 2010-08-15 at the Wayback Machine.
  5. ^ Butcher, Mike (2010-12-08). "WikiLeaks continues to fund itself via tech startup Flattr". Eu.techcrunch.com. Retrieved 2012-02-03. 
  6. ^ Linus Olsson (16 April 2013). "Twitter is forcing us to drop users ability to flattr creators by favoriting their tweets". Flattr blog. 
  7. ^ a b "AdBlock Plus teams up with Flattr to help readers pay publishers". TechCrunch. Retrieved 5 April 2017. 
  8. ^ "The company behind Adblock Plus is acquiring micropayment service Flattr". TechCrunch. AOL. Retrieved 5 April 2017. 
  9. ^ Hughes, Matthew (2017-10-24). "Flattr now lets you pay content creators without having to actually do anything". The Next Web. Retrieved 2017-10-26. 
  10. ^ da Silva, Paul (June 19, 2010). "Överallt : Flattr Everywhere !". Archived from the original on July 30, 2012. Retrieved June 22, 2010. 
  11. ^ "Offline Flattr". 
  12. ^ "'Cat's out of the bag – yes, Flattr now has investors'". FlattrBlog. Retrieved 22 March 2013. 
  13. ^ The Europas European Startup Awards 2010 - The Winners and Finalists
  14. ^ Hoola Bandoola Band-award - Flattr blog
  15. ^ Hoola-pris till bloggstöd (swedish) Archived 2011-07-19 at the Wayback Machine.
  16. ^ NetExplorateur - 2011 award winners Archived 2011-10-11 at the Wayback Machine.

External links

  • Flattr
  • Flattr blog
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