Google Ads Scripts
Google Ads Scripts is a free JavaScript automation layer built into every Google Ads account, maintained by Google -- no signup, install, or license needed. It runs on Google's Apps Script engine (still ES5/pre-V8 as of July 2026 -- Google has confirmed Ads Scripts lags the standard Apps Script V8 runtime, and Ads Scripts isn't covered by the 2026 Rhino-runtime retirement that applies to ordinary Apps Script projects), capped at 30 minutes execution per run (60 min for Ads Manager scripts via executeInParallel across up to 50 linked accounts) and 20,000 URLFetchApp calls/day (100,000 on Workspace). The most-cited free script library, Brainlabs-Digital/Google-Ads-Scripts on GitHub, has 155 stars, 33 forks, is GPL-2.0 licensed, and last received a code commit Sept 18, 2024 -- stale relative to Google Ads API v20's June 10, 2026 sunset. freeadwordsscripts.com -- an Optmyzr-operated blog featuring guest posts from Russell Savage -- remains a secondary free source. Current version/status: N/A -- platform feature, no product version; Apps Script engine remains pre-V8 (ES5) as of July 2026. License: Platform feature, proprietary/no license (Brainlabs' community script library: GPL-2.0). Pricing: Free, included in every Google Ads account with no execution fees, but capped at 20,000 URLFetchApp calls/day (100,000 on Google Workspace) and 30 minutes max runtime per script. Maintained by
Pick Scripts when you're a technical in-house PPC manager or agency dev who wants free, account-native automation -- n-gram mining, budget pacing, anomaly alerts -- and can debug JavaScript when Google's API shifts underneath you. Skip it if no engineer is on call: Optmyzr or Adalysis deliver the same bid/budget rules and audits through a UI, with change previews and audit logs Scripts lack. Even third-party PPC-tooling writeups flag that Scripts can break silently when Google updates its API and leave no built-in audit trail -- that's the tradeoff for zero cost. Known weakness: Scripts break silently when Google changes the underlying Ads API or UI, apply edits with no preview step, and leave no audit trail -- a limitation raised repeatedly in third-party PPC tooling comparisons, not just competitor marketing.