By　leveraging　the　power　of　open-source　software,　the　EDA　tool　offers　a　cost-effective　and　flexible　solution　for　designers,　researchers,　and　hobbyists　alike.　Open-source　EDA　promotes　collaboration,　innovation,　and　knowledge　sharing　within　the　EDA　community.　It　emphasizes　the　role　of　the　toolchain　in　accelerating　the　development　of　electronic　systems,　reducing　design　costs,　and　improving　design　quality.　This　paper　presents　an　open-source　EDA　project,　iEDA,　aiming　to　build　a　basic　infrastructure　for　EDA　technology　evolution　and　closing　the　industrial-academic　gap　in　the　EDA　area.　As　the　foundation　for　developing　EDA　tools　and　researching　EDA　algorithms　and　technologies,　iEDA　is　mainly　composed　of　file　system,　database,　manager,　operator　and　interface.　To　demonstrate　the　effectiveness　of　iEDA,　we　implement　and　tape　out　four　chips　of　different　scales　(from　700k　to　500M　gates)　on　different　process　nodes　(110nm　and　28nm)　with　iEDA.　iEDA　is　publicly　available　on　the　project　home　page　https://github.com/OSCC-Project/iEDA.