HelloCSV - A free FlatFile alternative
A modern, frontend only, open source, CSV importer
HelloCSV - A free FlatFile alternative launched on April 29, 2025 with 123 votes, #378 of 7,818 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
HelloCSV is a Flatfile alternative, except it's frontend only, open source, and free to use. Drop a beautiful CSV importer into any app in seconds (even if it doesn't use React). An intuitive four step flow: map columns, transform data, validate & preview.
Does a similar job
all alternatives →
Yobulk – Open-source CSV importer powered by GPT32023 · github.com · ▲233🔥 🔥 🔥Open Source & AI driven Data Onboarding Platform:Free flatfile.com alternative - yobulkdev/yobulkdev
- FAFlatfile – a drop-in CSV / XLS importer for web apps2019 · flatfile.io · ▲54
Flatfile is the AI data preparation and migration software that helps teams extract, prepare, map, transform, and validate messy data.


Csvbox.io – CSV import button for a web app, SaaS or API2021 · csvbox.io · ▲155Drop a production-ready CSV, Excel, and PDF importer into your SaaS in minutes. Handle up to 2 million rows per import, with column mapping, validation, webhooks, and clean data delivered to your API.
We built a developer-first open-source CSV import platform2023 · github.com · ▲25
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