📊 Chart Preview
{ } JSON Output
📊
Upload a chart image to get started
High-resolution extraction with image upscaling. Supports bar, line, scatter, and pie charts.
📤 Upload Chart
🖼️
Click or drag & drop
PNG, JPG, PDF page
🤖 Model
Stored in browser only. Never sent to our servers.
⚙️ High-Resolution Settings
🎯 High-Resolution Mode
Same preprocessing as Claude version: image upscaling, high point density prompts, iterative refinement.
💰 Cost: ~$0.08/M tokens (Qwen3-VL) vs $3/M (Claude) = 37× cheaper
Same preprocessing as Claude version: image upscaling, high point density prompts, iterative refinement.
💰 Cost: ~$0.08/M tokens (Qwen3-VL) vs $3/M (Claude) = 37× cheaper