Tiny Online Tools
Add a clean caption strip below any image. Custom font size, color, background, and padding. Fully private, runs in your browser.
Click to browse or drag & drop files here
Select an image
Accepted: image/*
Create classic memes with bold Impact-style top and bottom captions on any image. Adjustable font, color, and outline. No upload, fully private.
Add customizable borders to any image with adjustable size, color, style, and rounded corners.
Extend an image's canvas size by adding padding on each side. Solid color or transparent fill. Fully private.
View RGB and luminance histograms for any image in your browser. Inspect exposure, color balance, and tonal range. Fully private.
Export a COLMAP reconstruction as glTF or GLB — sparse points, camera frusta and real glTF cameras at every photograph's pose.
Check a PDF's tags, reading order, alt text, language and headings against machine-checkable WCAG rules.
Speed up or slow down animated GIFs in your browser. Adjustable speed multiplier from 0.1× to 5×, preserves frame timing.
Browse our full collection of free online tools.
Add a clean, magazine-style caption strip below any image. Perfect for editorial posts, photo essays, social media, accessibility annotations, and product photography descriptions.
For a magazine look, use a small font (24–36 px) with generous padding (40–60 px). For social posts, larger fonts with bolder backgrounds work well.