How to Build a Custom CSV Uploader in Softr (Vibe Coding Tutorial)

In this video, Guillaume Duvernay (Growth Marketer at Softr) fulfills a popular request: rebuilding a custom CSV upload feature step-by-step using the Vibe Coding block. Instead of manually adding contacts one by one, we use Softr's AI capabilities to generate a sophisticated drag-and-drop tool. This custom block allows users (like sales reps) to upload a bulk CSV file, map the columns to your database, and even review or reject specific records before importing. In this tutorial, we cover: - Database Setup: Creating a simple Contacts table with fields like Name, Email, and LinkedIn URL. - Vibe Coding Prompt: How to write a clear natural language prompt to generate a complex multi-step import flow. - Column Mapping: Building an interface that handles mismatched column names (e.g., "Last Name" vs "Surname"). - Review Stage: Adding a final validation step where users can select or unselect specific rows before the final import. - Iterating with AI: How to refine the block with a follow-up prompt to add "Fuzzy Matching" for auto-mapping columns. - UI Polish: Organizing the tool with Tab Containers to keep the interface clean and professional. ⏰ TIMESTAMPS: 00:00 - Intro: Building a Bulk Uploader 00:18 - Setting up the Database 02:10 - Adding the Vibe Coding Block 03:10 - Writing the Prompt for CSV Import 05:15 - Testing the V1 Prototype 07:15 - Refining with AI: Auto-Mapping Columns 08:25 - Final Test & UI Improvements 09:40 - Summary & Use Cases Learn more: Website: https://bit.ly/49d0I41 Help Docs: https://docs.softr.io/ Softr Community: https://bit.ly/3HC7uUN Softr blog: https://bit.ly/3ugAONV About Softr: Softr is the easiest, fastest no-code platform for building business apps, like portals and internal tools— without coding. Used by over 1,000,000 teams, and Fortune 500 brands like Google and Universal.