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Convert CSV data to a clean JSON array. Handles quoted fields, auto-types numbers and booleans.

Turn any JSON array of objects into downloadable CSV. Download as .csv or copy to clipboard.

Each CSV row becomes one JSON Line (NDJSON). Perfect for ML pipelines and streaming data.

Flatten a JSON array into newline-delimited JSON. Download as .jsonl for data pipelines.

Convert CSV training data (system/user/assistant columns) into OpenAI fine-tuning JSONL. Auto-detects format.

Convert JSON arrays to the OpenAI messages format required for fine-tuning chat models.

Paste any text or HTML — extract all URLs instantly. Toggle unique-only, copy all at once.

Enter a URL, get clean readable text. Strips HTML tags, scripts, and noise. Shows word count.

Add a WhatsApp chat button to your website in 60 seconds. Customise, preview, copy one line of code.

Compare API costs for GPT-5, Claude, Gemini, Grok, DeepSeek & 100+ LLMs. Estimate monthly token spend.