Preserving Development Knowledge for the Future.
118,514 USAID evaluations, reports, and studies — open, fully searchable, and always free.
The scale
documents — preserved exactly as they were published.
A world of evidence.
Each document is tagged to the places it covers. Tap any country to zoom in and open its evidence base.
Meet DECipher.
Ask a question — about a single document, or across all 118,514 — and get a clear answer with the sources it came from.
On: Bangladesh Maternal & Newborn Health — Final Evaluation (2021)
What were the main findings?
Every answer cites the documents it draws from — no black boxes.
The DECipher suite
One assistant, five modules.
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Start anywhere.
Jump straight into the themes that shape development work.
More than six decades of evidence.
From 1958–2025 — programs, evaluations, and studies preserved across the decades. Tap a bar to browse that era.
Evidence is how we get better.
Good development decisions rest on knowing what has been tried before. Across more than six decades, USAID documented thousands of programs — what they set out to do, and what actually happened. DECfinder keeps 118,514 of those documents open, searchable, and always free, turning decades of field experience into knowledge anyone can learn from.