Data, SQL, Chart & Mock Fixture Studios
Structured JSON/YAML/XML/INI transformers, CSV/TSV & multi-dialect SQL studios, 8-type Chart.js + descriptive statistics, and seedable mock dataset generators.
4 unified studios · 100% client-side execution · Zero uploads · No sign-up

Convert and validate JSON, YAML, XML, .env, and CSV datasets, infer SQL schemas, plot interactive statistical charts, and generate deterministic seeded test fixtures.

JSON, YAML, XML & Config Studio
Validate, format, minify, sort keys, and convert across JSON, YAML 1.2, XML, and .env/INI configs, query deep paths, validate JSON Schema, and generate TypeScript/JSON-Schema types.

CSV, TSV & SQL Data Studio
Convert RFC 4180 CSV/TSV ↔ JSON, YAML, and Markdown tables, filter/sort columns in an interactive grid, generate typed SQL CREATE/INSERT scripts, and format PostgreSQL/MySQL/SQLite queries.

Chart, Graph & Statistics Studio
Render 8-type multi-series Chart.js visualizations from CSV/table data with high-DPI PNG export, plus descriptive statistics (mean, median, IQR, std dev, histogram) and linear regression.

Mock Data & Fixture Studio
Build reproducible seed-driven mock datasets with 18 realistic field types (names, emails, UUIDs, IPv4, dates, Luhn test cards, prices) and export up to 1,000 rows as JSON, CSV, SQL, or TypeScript.
Common workflows in Data, SQL & Analytics Studios
Structured configs & JSON Schema Draft-07
Prettify JSON/YAML, convert XML and .env files to Kubernetes ConfigMaps, and generate TypeScript interfaces or Draft-07 JSON Schemas.
Tabular CSV/TSV & SQL DDL/INSERT generation
Transform spreadsheets into Markdown tables or SQL INSERTs, infer PostgreSQL/MySQL/SQLite CREATE TABLE types, and format complex SQL queries.
Visualization, regression & seeded fixtures
Render 8 Chart.js chart types, compute IQR/outlier statistics and OLS linear regression, or export repeatable PRNG-seeded JSON/CSV/SQL test rows.
Data, SQL & Analytics Studios — frequently asked questions
- Why use a seeded mock dataset studio?
- Using a deterministic PRNG seed guarantees identical UUIDs, emails, and amounts across CI test runs.
Related data, sql & analytics studios guides
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Explore all 37 browser studios
37 local-first utilities across 11 categories — free and ready with no sign-up.