Introducing Six Data Format Tools
Micru now covers the full spectrum of developer data formats: CSV, JSON, TOML, TOON, XML, and YAML, each with its own dedicated tool at a dedicated subdomain.
We’ve just shipped six data format tools, and they’re all live right now.
Working with structured data is a constant in every developer’s life. You’re validating a JSON response that came back malformed. You’re reformatting a YAML config that was hand-edited and drifted from the expected indentation. You’re double-checking a TOML file to make sure the types look right before deploying. You need these checks fast, without leaving your editor, without trusting a random web service with your data.
That’s exactly what this new category of tools is for.
The Six Tools
csv.micru.org - Format, validate, convert, filter, sort, and transform CSV data. CSV is everywhere (spreadsheets, exports, data pipelines), and it’s surprisingly easy to end up with a file that looks fine in Excel but breaks your parser. The CSV tool lets you inspect exactly what you’re dealing with.
json.micru.org - Validate, format, and visualize JSON data. Malformed JSON is one of the most common and most annoying debugging sessions a developer faces. The JSON tool catches errors immediately and gives you a clean, readable view of the structure.
toml.micru.org - Validate and format TOML. TOML has become the configuration format of choice in Rust projects, Python packaging, and Hugo sites. The tool helps you catch type coercion surprises and formatting issues before they become runtime errors.
toon.micru.org - Convert, validate, and transform Token-Oriented Object Notation. TOON is the newest format in this set, and also the most interesting. It’s designed specifically for use with LLMs: a compact, human-readable encoding of the JSON data model that significantly reduces token usage compared to standard JSON. You can read much more about how it works in our deep dive on the TOON format.
xml.micru.org - Pretty print and validate XML documents. XML isn’t going anywhere; it’s still the backbone of SOAP APIs, RSS feeds, SVG, and Android manifests. When the structure gets deep and the namespace declarations start multiplying, a dedicated validator saves time.
yaml.micru.org - Convert and validate YAML. YAML is ubiquitous in infrastructure tooling: Kubernetes configs, GitHub Actions, Ansible playbooks, Docker Compose files. It’s also notoriously easy to write YAML that parses but means something different from what you intended. The YAML tool helps you verify the structure is what you expect.
Everything Runs in Your Browser
Every tool in this set processes your data entirely client-side. Nothing is sent to a server. This applies to all six, from the JSON formatter to the TOON converter. If you’re working with internal config files, proprietary data schemas, or sensitive API responses, you don’t have to think twice about pasting them in.
One Format Per Tool
Following Micru’s usual approach, each of these is a focused, single-purpose tool. There’s no unified “multi-format converter” that tries to do everything. There’s a CSV tool, a JSON tool, a TOML tool, and so on, each at its own URL, each optimized for its format.
Bookmark the one you need. That’s all it takes.
All six tools are live now at their respective subdomains. If you’re curious about TOON and why a format designed specifically for LLM input is worth your attention, read the full breakdown here.