Are all the converter tools completely free?

Yes, every tool on Conventro is 100% free. There are no subscription fees, no usage limits, and no hidden charges. Convert as much data as you need without any restrictions.

Is my data safe when I use Conventro?

Absolutely. All conversions run entirely in your browser using JavaScript. Your data is never sent to our servers, never stored, and never logged. We have zero access to what you paste or upload, which makes Conventro safe for sensitive data like API keys, config files, and proprietary data structures.

Which file formats does Conventro support?

Conventro supports JSON, YAML, CSV, XML, TOML, INI, and ENV formats across 40+ conversion tools. You can convert between any combination of these formats. Browse the All Tools page to see the full list.

Do I need to install anything or create an account?

No. Conventro works entirely in your web browser. There is nothing to install, no sign-up required, and no login needed. Just open the tool, paste your data, and convert.

Can I convert large files?

Yes. Since processing happens locally in your browser, there is no server-side file size restriction. The practical limit depends on your browser and available memory, but most modern browsers handle files up to tens of megabytes without any issue.

Can I upload a file instead of pasting content?

Yes. Every converter tool has an Upload File button that lets you load a file directly from your device. The file is read locally and never uploaded to any server.

JSONYAMLCSVXMLTOMLINIENV

Free Online File Format Converter Tools

Convert between JSON, YAML, CSV, XML, TOML, INI, and ENV instantly. 40+ tools that run entirely in your browser — no sign-up, no uploads, no waiting.

40+

free converters

formats

server uploads

Browse All Tools

json → yaml

Input

{

"name": "John"

"role": "admin"

"active": true

}

Output

name: John

role: admin

active: true

converted in <1ms · browser only

Paste or Upload

Drop in your JSON, YAML, CSV, XML, TOML, INI, or ENV data directly or upload a file.

Click Convert

Instant results — all processing happens locally in your browser with zero latency.

Copy Your Result

One-click copy to clipboard. Paste wherever you need it.

Why Choose Conventro?

Private by Design

Every conversion runs entirely inside your browser using JavaScript. No server ever sees your data. Safe for API keys, config files, and sensitive data structures.

Instant, No Limits

Zero round-trips to a server means zero latency. Convert as much data as you want, as many times as you want — for free, with no account required.

Built for Developers

40+ converters covering every common format pairing. JSON, YAML, CSV, XML, TOML, INI, and ENV — the formats that show up in real workflows every day.

All Converters

40+ tools across 7 formats — jump to a category below

JSON YAML CSV XML TOML INI ENV BSON HAR

JSON

JSON Converters

Convert JSON arrays, objects, and nested structures to and from other formats.

JSONXML

JSON to XML

Transform JSON data into well-formed XML for SOAP APIs and legacy system integrations.

JSONCSV

JSON to CSV

Flatten JSON arrays into CSV rows ready for Excel, Google Sheets, or data analysis tools.

JSONYAML

JSON to YAML

Convert JSON config or data into human-readable YAML for Docker, Kubernetes, or Ansible.

JSONTOML

JSON to TOML

Turn JSON into TOML format used by Rust Cargo, Python pyproject.toml, and Hugo.

JSONINI

JSON to INI

Export JSON key-value data as INI configuration files for apps and system settings.

JSONENV

JSON to ENV

Generate a .env file from a JSON object for use with Node.js, Docker, and CI pipelines.

JSONMessagePack

JSON to MessagePack

Encode JSON as compact MessagePack binary (Base64) for APIs, caches, and binary protocols.

MessagePackJSON

MessagePack to JSON

Decode MessagePack binary (Base64 or hex) back to readable JSON for debugging and inspection.

YAML

YAML Converters

Parse YAML configuration files and convert them to any supported format.

YAMLJSON

YAML to JSON

Convert YAML config files to JSON for APIs, JavaScript apps, and data processing pipelines.

YAMLXML

YAML to XML

Transform YAML into XML for enterprise systems, SOAP services, and legacy integrations.

YAMLCSV

YAML to CSV

Export YAML list data as CSV for spreadsheet import and data analysis workflows.

YAMLTOML

YAML to TOML

Convert YAML configuration to TOML format for Rust, Hugo, and other TOML-based tools.

YAMLINI

YAML to INI

Turn YAML settings into INI format for apps that rely on classic configuration files.

YAMLENV

YAML to ENV

Extract YAML key-value pairs into a .env file for environment variable management.

CSV

CSV Converters

Convert spreadsheet and tabular data from CSV into structured formats.

CSVJSON

CSV to JSON

Convert CSV rows into a JSON array with headers as keys, ready for APIs and web apps.

CSVXML

CSV to XML

Wrap CSV tabular data in XML elements for enterprise system imports and data exchange.

CSVYAML

CSV to YAML

Convert spreadsheet data from CSV into a structured YAML list for config and automation.

CSVTOML

CSV to TOML

Transform CSV records into TOML tables for Rust projects and TOML-based configurations.

XML

XML Converters

Parse XML documents and convert them into modern, developer-friendly formats.

XMLJSON

XML to JSON

Convert XML responses and documents into JSON for use in REST APIs and JavaScript apps.

XMLYAML

XML to YAML

Turn XML configuration or data files into clean, readable YAML for DevOps workflows.

XMLCSV

XML to CSV

Flatten XML data into CSV rows for spreadsheet import and reporting tools.

XMLTOML

XML to TOML

Convert XML configuration into TOML format for modern tooling and Rust projects.

XMLINI

XML to INI

Extract XML settings and convert them to INI configuration files for classic apps.

XMLENV

XML to ENV

Pull key-value data from XML and generate a .env file for environment configuration.

TOML

TOML Converters

Convert TOML configuration files used in Rust, Python, and Hugo projects.

TOMLJSON

TOML to JSON

Parse TOML config files and convert them to JSON for APIs and JavaScript tooling.

TOMLYAML

TOML to YAML

Convert TOML project config into YAML for CI pipelines, Docker Compose, and Kubernetes.

TOMLXML

TOML to XML

Transform TOML data into XML format for legacy systems and enterprise integrations.

TOMLCSV

TOML to CSV

Export TOML table data as CSV rows for spreadsheet analysis and reporting.

TOMLINI

TOML to INI

Convert TOML configuration to INI format for software that requires classic config files.

TOMLENV

TOML to ENV

Generate a .env file from TOML key-value pairs for use in deployment and CI workflows.

INI

INI Converters

Parse INI configuration files and convert them to modern structured formats.

INIJSON

INI to JSON

Convert INI config files to JSON for use in APIs, Node.js apps, and data pipelines.

INIYAML

INI to YAML

Migrate INI settings into YAML format for modern DevOps and automation tooling.

INIXML

INI to XML

Transform INI configuration into XML for enterprise systems and legacy integrations.

INITOML

INI to TOML

Upgrade INI files to TOML format for Rust projects and modern configuration management.

INIENV

INI to ENV

Convert INI section key-value pairs into a .env file for environment variable setup.

ENV

ENV Converters

Convert .env environment variable files to and from any structured format.

ENVJSON

ENV to JSON

Convert .env variables to a JSON object for use in APIs, config loaders, and scripts.

ENVYAML

ENV to YAML

Transform .env key-value pairs into YAML for Kubernetes secrets and Docker Compose configs.

ENVXML

ENV to XML

Wrap .env variables in XML elements for enterprise configuration or system imports.

ENVTOML

ENV to TOML

Convert .env files to TOML format for use in Rust, Python, and Hugo projects.

ENVINI

ENV to INI

Turn .env variables into INI configuration format for classic application settings.

BSON

BSON Converters

Convert between BSON binary format and JSON for MongoDB workflows.

JSONBSON

JSON to BSON

Encode JSON data into BSON binary format for MongoDB storage and transport.

BSONJSON

BSON to JSON

Decode BSON binary data back to human-readable JSON format.

HAR

HAR Converters

Parse and convert HAR (HTTP Archive) files for network request analysis.

JSONHAR

JSON to HAR

Convert JSON data into HAR format for HTTP archive inspection and debugging.

HARJSON

HAR to JSON

Extract and convert HAR network archive data to clean JSON for analysis.

What is Conventro?

Conventro is a free, browser-based collection of 40+ file format converter tools built for developers, data analysts, DevOps engineers, and anyone who regularly works with structured data. You can convert between JSON, YAML, CSV, XML, TOML, INI, and ENV formats instantly, without installing any software or creating an account.

Every conversion runs entirely inside your browser. Your data never leaves your machine and is never sent to any server, making Conventro one of the most private and secure conversion tools available online.

Who Uses Conventro?

Developers converting API responses between JSON and XML for system integrations

DevOps engineers transforming Kubernetes YAML configs into TOML or JSON for tooling

Data analysts exporting JSON from databases and converting to CSV for Excel or Sheets

Backend engineers reading .env files and converting them to JSON for configuration management

System integrators bridging legacy XML systems with modern JSON-based APIs

Students and learners exploring how different data formats represent the same structure

Why Conventro is Different

Most online converters send your data to a remote server for processing, which creates privacy risks especially when working with sensitive configuration files, API keys, or proprietary data structures. Conventro eliminates that risk entirely. Conversions happen locally using JavaScript in your browser, so there is no server, no logging, and no data retention of any kind.

All tools are completely free with no usage limits, no account requirement, and no hidden paywalls. Whether you need a one-off conversion or are converting dozens of files a day, Conventro handles it the same way.

Frequently Asked Questions

Everything you need to know about Conventro.