DataFrog — Online Data Conversion Tools

40+ free tools to convert, format and transform data.

Visit datafrog.tools ↗Alternativestop 11% of June 2026

What it does

DataFrog is a collection of 40+ free browser-based tools for converting, formatting, validating, cleaning, and transforming data between JSON, CSV, XML, Excel, SQL, YAML, PDF, and other formats.

Does the same job

all alternatives →

Transform 2.02019 · ▲149
A polyglot web converter
OpenSheetFeb 2026 · ▲86
Turn raw CSV and JSON into an interactive data canvas
Konbert2022 · ▲81
Convert between data formats with a single tool
DA
Datamorph – A clean JSON ⇄ CSV converter with auto-detectNov 2025 · datamorphio.vercel.app · ▲26
Hi everyone, I built a small web tool called Datamorph because I kept running into JSON/CSV converters that either broke with nested data, required login, or added weird formatting. Datamorph is a minimal, fast, no-login tool that can: • Convert JSON → CSV and CSV → JSON • Auto-detect structure (arrays, nested objects, mixed data) • Handle uploads or manual text input • Beautify / fix invalid JSON • Give clean, flat CSV output for real-world messy data It’s built with React + Supabase + serverless functions. Everything runs client-side except file parsing, so nothing is stored. I…
AI
All-in-one open source tool for data pipelines2022 · github.com · ▲21
Parsify ToolsJun 2026 · parsify.tools · ▲3
Privacy-first JSON, CSV & XML converter for developers

More dev tools this month

the category →

Dograh▲592
The open source VAPI alternative
Dev tools · 25d ago · dograh.com
Meridian▲530
Don't let your work go unnoticed. Get promoted!
Dev tools · 20d ago · meridiona.com
x1▲516
Lovable for iPhone apps go from idea to App Store
Dev tools · 11d ago · x1.new
Computable GPU Index (CGI)▲424
The first open-source price index for GPU compute
Dev tools · 10d ago · getcomputable.com
The GTM Co-Founder▲402
Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
Open-Source eInk Bike Computer▲401
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com

Launched alongside, June 2026

the whole month →

Fundraisly▲1,544
AI fundraising agent that finds investors and books meetings
AI · Jun 2026 · fundraisly.com
H6
Homebrew 6.0.0▲1,481
Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!
Dev tools · Jun 2026 · brew.sh
PU
Performative-UI – A react component library of design tropes▲1,181
hope you enjoy
Life & fun · Jun 2026 · vorpus.github.io
Upstream▲977
The inbox designed for humans and agents
AI · Jun 2026 · upstream.do
Goldfish▲962
Press Option. It knows your work and replies like you
AI · Jun 2026 · goldfish.sh
IM
I made Google Trends for Hacker News by indexing 18 years of comments▲822
Life & fun · Jun 2026 · hackernewstrends.com