Five free open-source digital tools to combat disinformation

Publié le 22 May 2025 par Julien Duret

In the digital age, misinformation proliferates online, making fact-checking and the dissemination of reliable information essential for citizens. To address this growing challenge, free, open-source tools are proving invaluable. These tools allow journalists, citizens, and educators to better understand and combat misinformation. In this article, we will examine five of these innovative digital tools and their impact in the fight against misinformation.

The Challenges of Online Misinformation

Online misinformation represents one of the greatest contemporary challenges, particularly in the run-up to elections or during health crises. False information spreads rapidly, reaching a wide audience even before it is verified. To better understand this phenomenon, let’s examine some of the causes and consequences of misinformation.

The Challenges of Misinformation

Misinformation can manifest itself in several forms, ranging from unfounded rumors to manipulation campaigns orchestrated by influence groups. Here are some crucial issues:

Consequences of misinformation

The harmful effects of misinformation are felt on several levels:

To address this reality, it is imperative to have tools available to detect, verify, and counter disinformation.

Towards open source solutions

Open source solutions, in addition to being free, allow users to adapt them according to their needs. This is where digital tools come into play, offering a variety of capabilities to combat disinformation. We will focus on five particularly innovative solutions designed to address the challenges mentioned.

Tool Description Type
Quem Disse? Evaluates information sources and promotes the author. Verification
Check-up Fact-checking tool to validate information. Verification
Capí chatbot Offers scientific data on the environment and climate. Education
Mosaico Produces short videos based on written reports. Content Creation
Xarta Provides up-to-date contextual information. Documentation Each of these tools complements each other and allows different stakeholders to effectively combat disinformation.

Quem Disse?: Promoting the Authenticity of Sources

In a world where the provenance of information is often questioned, the tool

Quem Disse? is used to assess the credibility of sources. Developed as part of the Codesinfo project in Brazil, this tool highlights the concept of authorship, asserting the need to cite sources and acknowledge the authors of content. This helps strengthen editorial responsibility. How Quem Disse? WorksThe tool is simple to use: it allows users to enter a piece of information or a title and receive an assessment based on several criteria. The parameters analyzed include:Author’s History:

Analysis of the author’s track record regarding the reliability of their publications.

Veracity Factors:

Impact on journalism and citizens Journalists play a crucial role in the fight against disinformation. With this tool, they can easily cross-reference information and provide quality content. Similarly, citizens, by using this type of tool, can also become critical and engaged actors in the processing of information. Features

Benefits

Easy to use

Accessible to all, without technical skills required. Constantly evolving database
Stays up to date with new verified information. Check-up: The fact-checking tool for journalists
Check-up is another essential tool for combating disinformation by providing an effective fact-checking platform. Evaluating facts is crucial, especially for journalists, who must ensure the accuracy of the information they report. How does Check-up work?

The principle of Check-up is based on several steps:

Submission of a fact: Users can submit statements for verification.

Expert analysis:

A team of fact-checkers reviews the content.

Description

Collaborative fact-checking

Allows journalists to work together to validate information.

Access to verification results Facilitates the rapid dissemination of verified information to the general public.
Capí chatbot: Access to reliable scientific data With the rise of environmental issues,
Capí presents itself as an innovative chatbot that provides reliable scientific information, particularly on topics such as climate change. This type of tool helps users obtain accurate information on complex issues.

Using the Capí chatbot

Capí operates through conversational interaction: Q&A: Users ask questions on specific topics.

Contextualized responses:

The chatbot provides answers with scientific references.

Scientifically Validated Information

Helps prevent misinformation on environmental issues.

Real-Time Interaction

Enables rapid responses when needed. Mosaico: The Innovative Video Creation Tool
In a world where visual content is becoming a key communication tool, Mosaico
allows you to produce videos from textual content. It’s an effective way to inform citizens while making the information engaging and accessible. How Mosaico Transforms Information

The platform operates through a three-step process:

Source Integration: Gathers the textual content that needs to be illustrated. Automatic Creation:

Generates videos integrating images and text.

Rapid Dissemination:

Automatic Video Creation

Facilitates rapid dissemination of information.

Accessibility on Multiple Platforms

Increases the visibility and reach of content. Xarta: The Contextualization Tool
The last tool we’ll explore is Xarta
, which focuses on providing contextual information and up-to-date news. In a constantly evolving information landscape, the ability to obtain up-to-date data is crucial. Xarta Features

Xarta acts as a documentation platform, allowing users to quickly access additional information:

Continuous Update: Information is regularly verified and updated.Links to Reliable Databases:

Access to a variety of trusted sources.

Intuitive Interface:

Access to documented data

Promotes more accurate and relevant information searches.

User-friendly interface

Makes the user experience enjoyable and efficient.
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