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OpenX comparisons

#4 of 19 in Supply Side Platforms

OpenX is compared head-to-head with Magnite, PubMatic and Index Exchange and more: 7 head-to-heads in Supply Side Platforms, each with the specs and prices we checked.

7.4/10Editor score
OpenX7.4 Visit OpenX

OpenX head-to-head

OpenX vs each of them

#ToolFree planPaid fromInventory channelsAuction typesHeader bidding supportPrivate marketplace dealsAd formatsScore
4OpenX——Connected TV (CTV), display, video, mobile, digital out-of-home (DOOH), nativeFirst-price, second-priceYesYesDisplay, video, mobile, native, connected TV (CTV), digital out-of-home (DOOH)7.4
1MagniteNo—CTV/OTT, display, online video, audio, native, digital out-of-home, mobile in-appopen auction, private marketplace, programmatic guaranteedYesYesdisplay, online video, audio, native, digital out-of-home, mobile in-app, CTV/OTT9.0
2PubMaticNo—CTV/OTT, online video, mobile app, mobile web, desktop webreal-time bidding (RTB), header bidding, unified auctions, private marketplace and programmatic guaranteedYesYesdisplay/banner, static display, video, outstream video, interstitial, rewarded video, native, rich media8.2
3Index Exchange——web, mobile apps, streaming TV (STV) appsfirst-price, fixed-price; private auctions/dealsYesYesbanner, video (instream, outstream, rewarded where supported), native7.7
5Media.net——web, AMP, in-appreal-time auctionsYesYesdisplay, native, video, text, push, image, rich media, expandable7.1
6Admixer.SSP——desktop, mobile web, in-app, CTV, DOOHopen auctions, private marketplace (PMP), programmatic guaranteedYesYesdisplay, native, video, audio, rich media6.9
7Azerion SSP——Web, app, connected TV (CTV), digital out-of-home (DOOH)——YesDisplay, native, video, audio, rich media6.8
8Adform SSP——video, in-app, desktop, native, mobile, rich mediareal-time bidding; first-price; second-price; fixed-CPM dealsYesYesvideo, rich media6.6

Compare OpenX with any supply side platform

These are the matchups our editors wrote up. The compare tool pairs OpenX with any other product in Supply Side Platforms — and up to four at once — from the same checked specs.

Compare OpenX with any tool side by side →

Every supply side platforms head-to-head →

Our full OpenX verdict, pricing and fact sheet →

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Compared by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update