Build Prebid wrappers
Pre-built bidder presets for PubMatic, AppNexus, Rubicon/Magnite, IX, OpenX, and more. Configure your Prebid.js wrapper and export production-ready code.
Build Prebid.js, push Prebid line items to GAM & generate GAM ad code
BuildPrebid is an all-in-one toolkit for publishers and ad ops teams: build a Prebid.js wrapper with your SSP partners (PubMatic, Xandr, Magnite, Index Exchange…), push Prebid line items into Google Ad Manager (GAM) in one click, and generate GAM ad code (GPT tags) with lazy load, viewability refresh, and key-value targeting. Invite-only. Sign in or request access below.
Prebid line items in GAM
Push Prebid price-bucket line items directly into Google Ad Manager with the right key-values, creatives and targeting. No spreadsheets, no manual trafficking.
GAM ad code generator
Generate clean GPT ad tags for any GAM ad unit with size mapping, lazy load, viewability refresh and key-value targeting (WordPress categories, tags, post IDs, contextual keywords).
Frequently asked questions
- What is BuildPrebid?
- BuildPrebid is a free toolkit for publishers and ad ops teams to build Prebid.js wrappers, push Prebid line items into Google Ad Manager (GAM), and generate GAM ad code (GPT tags) with lazy load, viewability refresh, and key-value targeting.
- How do I push Prebid line items into GAM?
- Connect your GAM network in BuildPrebid, choose a price-bucket granularity (dense, low, medium, high, auto, or custom), pick the orders, advertisers and targeting you want, and click Push. BuildPrebid creates Prebid orders, line items, creatives and hb_pb key-value targeting automatically — no spreadsheets.
- Which Prebid bidders are supported?
- BuildPrebid ships with presets for PubMatic, AppNexus / Xandr, Magnite / Rubicon, Index Exchange, OpenX, Smart / Equativ, TripleLift, Sovrn, Criteo and more. You can also paste a freeform setup and the AI parser maps it into Prebid bidder params.
- Does the GAM ad code generator support lazy loading and viewability refresh?
- Yes. The GPT tag generator supports responsive size mapping, lazy loading with viewport thresholds, viewability-based refresh, web interstitials, top/bottom anchor ads, and TCF / USP / GPP consent via the CMP module.
- Is BuildPrebid free?
- BuildPrebid is invite-only and free to use during the pilot. The WordPress contextual keyword plugin has a free tier (10 keywords) and a Pro tier (unlimited keywords, categories, tags, post IDs).
- Does BuildPrebid work with WordPress?
- Yes. BuildPrebid generates a hardened WordPress plugin that exposes page categories, tags, post IDs and contextual keywords as GAM key-values (cat, tag, pid, ctx) so you can target line items by content.