Free AI Figure Enhancer for Scientific Illustrations

SciFig's figure enhancer recreates an uploaded illustration according to your instructions: it can unify colors and fonts, remove clutter, align arrows and panels, simplify icons, or match one consistent style. Upload a PNG, JPG, or WebP file up to 20 MB and describe the changes in plain language. Only upload figures you have the right to use and modify.

SciFig's figure quality enhancer works best on schematics, diagrams, pathway and mechanism figures, and other explanatory illustrations — for example a low-resolution figure exported from slides or a sketch-like draft. For a plot of measured values, SciFig DataChart (data-driven charts) regenerates the chart precisely from your original table, with column mappings and settings you choose.

Yes. SciFig's figure enhancer works on the free plan with GPT Image 2, no card required: 150 credits on day one (3 figures), daily check-in credits that grow with your streak (up to 150 a day) — up to about 44 figures in your first month. Invite a friend and you both get 200 more credits. That lets you enhance figure quality online free of a subscription. Paid plans from Starter upward add six models, including Nano Banana Pro and GPT Image 2.5, and paid credits that never expire; see the SciFig pricing page for current plans.

In SciFig, enhancing uses AI to improve sharpness, reduce noise and restore legibility from an existing illustration. Upscaling then adds pixels to the finished result, at 2K or 4K, for print or large slides.

SciFig keeps your content most faithfully when your prompt lists the labels, numbers, units and arrow directions that must stay fixed. Because an enhanced figure is a new rendering, comparing it with your original element by element, including scale bars and panel letters, shows quickly whether anything moved. Any detail can then be corrected with Region Redraw (powered by Nano Banana Pro) or text edits in SciFig AI Illustration, or by converting the figure to editable SVG.

After generation, the result opens in SciFig AI Illustration, where you can keep refining it through conversation, Region Redraw (powered by Nano Banana Pro), and text edits. You can also convert it to editable SVG with Edit in Canvas, and export SVG, PNG, JPG or PPTX.