Best Free Demand-Side Platforms (DSP)
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Compare the Top Free Demand-Side Platforms (DSP) as of July 2025
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What are Free Demand-Side Platforms (DSP)?
Demand-Side Platforms (DSPs) are software platforms that allow advertisers to buy digital advertising inventory in an automated and efficient manner. These platforms enable advertisers to manage, optimize, and execute real-time bids for ad spaces across multiple ad exchanges and supply-side platforms (SSPs). DSPs use data and algorithms to target specific audiences, ensuring ads are delivered to the right users at the right time, and can incorporate audience insights, behavior patterns, and contextual targeting. They also offer tools for campaign optimization, performance tracking, and detailed analytics to maximize ad spend efficiency and return on investment (ROI). By consolidating various demand sources, DSPs provide advertisers with broader access to inventory and more precise control over their advertising efforts. Compare and read user reviews of the best Free Demand-Side Platforms (DSP) currently available using the table below. This list is updated regularly.
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1
AdLib DSP
AdLib Media Group
AdLib is the premium DSP for everyone. Reach your audience on the world’s most popular sites, apps, and streaming platforms. No Contracts. No Minimums. Most marketers struggle to access premium programmatic advertising platforms because of high barriers to entry and complexities that demand a lot of your time and resources. AdLib removes those barriers and complexities allowing you to easily set up and launch successful programmatic campaigns at scale across all channels. Why AdLib? Manage More Campaigns, Drive Better Outcomes, And Spend Less Time Doing It All! - A Simple Self Service DSP That Anyone Can Use - No Annual Contracts Or Commitments - Magic Ad Builder For Clean, Modern, & Authentic Ads - 24/7 Access To Transparent & Deep Insights - Always-On Brand, Privacy, & Fraud Controls -
2
ad:personam
ad:personam
ad:personam is a self serve DSP built on Xandr Microsoft DSP's API offering a solution for programmatic advertising to businesses, startups, and SMB agencies. With no minimum ad spend, it breaks financial barriers, making programmatic advertising accessible to all. The platform offers an array of programmatic buying solutions, including Contextual Targeting, Audience Target Groups, Connected TV, Video & Audio Campaigns and Retargeting. The platform supports creative ad formats like GIF, JPEG, PNG, HTML5, video and audio files. Integration with Google Looker offers real-time performance dashboards for effective reporting. The Smart Templates feature ensures swift campaign setup, while built-in fraud detection and site whitelisting/blocklisting tools ensure authentic ad interactions. Furthermore, ad:personam offers access to global inventory and 3rd party data providers across display, video, audio, and CTVs, opening the doors to high-quality audiences and premium sites.Starting Price: €149/month -
3
Pontiac Intelligence
Pontiac Intelligence
Create highly customizable audiences inside of Pontiac Intelligence's console across device IDs (distinctive numbers associated with smartphones) You can input as many highly specific details as you like for your audience. Pontiac Intelligence offers over 350,000 audience segments that you can integrate into any of your campaigns. Associate a full spectrum of third-party audiences with any of your campaigns. Target audiences who have displayed through their web activity specific interests or lifestyles through using any of our thousands of available behavioral segments. Want people who have been looking for jobs in entertainment? People in the market for school supplies? People who make $50-75,000 a year? Perhaps people who use teeth-whitening strips? Check out these kinds of audiences, pre-packaged and immediately available for your campaigns. Target audiences who have displayed through their web activity specific interests or lifestyles.Starting Price: $25 per month -
4
DecenterAds
DecenterAds
DecenterAds is the demand side platform for direct advertisers and agencies. DecenterAds, a cutting-edge infrastructure that can be customised for programmatic companies, is designed for efficient RTB trading. The product connects advertisers and publishers worldwide at all possible locations according to IAB Standards. DecenterAds offers a cost-effective solution that provides powerful billing support and transparent, real-time reporting. The platform offers Machine Learning Technology to build a digital advertising business within the programmatic ecosystem. -
5
iion
iion
iion is a unified game advertising platform that connects brands and game publishers across all gaming environments. It enables advertisers to create seamless ad campaigns through a self-serve platform, allowing engagement with audiences within games, around games, and beyond. For publishers, iion's fusiion solution diversifies revenue streams by providing access to premium branded advertisements from global partnerships, leading to higher CPMs. It supports in-game advertising, integrating brands directly into the gaming experience, as well as around-game and away-from-game placements, extending reach beyond the screen. iion's recent integration with PubMatic's OpenWrap enhances monetization opportunities for gaming publishers by connecting them with a broader range of advertisers. It is committed to simplifying game advertising by unifying campaigns across the gaming journey, empowering brands with innovative and impactful engagements.
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