Free browser-based converters that turn one data format into another — JSON↔CSV, JSON↔YAML, and XML↔JSON — with nested flattening, indentation control, and validation built in. No uploads, no signup, your data never leaves the browser.
Convert XML to JSON and JSON to XML bidirectionally with pretty printing.
Launch ToolConvert JSON to CSV and CSV to JSON with nested flattening and delimiter control.
Launch ToolConvert JSON to YAML and YAML to JSON with indentation control and validation.
Launch ToolConvert CSV to XML and XML to CSV bidirectionally with configurable delimiters, root tags and row tags.
Launch ToolConvert raw HTML or a URL into a downloadable PDF with page size, margins, and header/footer control.
Launch ToolConvert JSON to TOML and TOML to JSON bidirectionally with validation and pretty-printing.
Launch ToolConvert YAML to TOML and TOML to YAML bidirectionally with validation and indentation control.
Launch ToolConvert text into natural speech in your browser and download an audio file with voice, rate, and pitch control.
Launch ToolConvert SQL INSERT statements and table dumps into JSON objects, or generate SQL INSERT statements from JSON.
Launch ToolConfiguration files and API payloads come in many shapes — JSON from modern APIs, CSV from spreadsheets, YAML from config files, XML from legacy systems. Converting between them should be instant and private, never a question of uploading to a free-trial converter that quietly retains your data.
ToolWise runs every conversion locally in your browser using pure JavaScript parsers. Paste your data, get the converted output, copy it out — the bytes never touch a server. JSON↔CSV handles nested flattening and custom delimiters, JSON↔YAML respects indentation and validates both directions, and XML↔JSON pretty-prints the round trip.
The hub also covers Markdown→PDF with themes and watermarks, HTML→PDF with page-size and margin control, and Text-to-Speech that emits a downloadable audio file — useful when you need to ship a one-pager or read a long document out loud without a commercial TTS subscription.
Most tools run entirely in your browser. No uploads, no tracking, no accounts.
No subscriptions, no daily limits, no signups — every tool on this page is free forever.
Client-side processing means instant results — no queues, no waiting on a server.