Small tasks. A little easier.126 tools · No account required

Find your next tool

Search all 126 tools and their practical guides.

The ERITHRA Blog

Learn it. Make it. Done.

Clear explanations for the work behind the tools. No long detours.

An open notebook, teal folder, yellow clip and terracotta cup on a bright desk

Image3 min read

Crop an image using exact pixel coordinates

Set a crop rectangle from its left and top edges, calculate valid bounds, and apply a consistent crop to compatible images.

Image3 min read

Resize images to a precise width without stretching them

Use width and height settings correctly, calculate a proportional example, and review a resized image batch.

Image3 min read

Rotate or mirror images and verify the direction

Apply clockwise quarter-turns and flips, understand changed dimensions, and check text and orientation in the exported PNG.

Image3 min read

Create an image data URL and embed a small asset

Convert one image to a Base64 data URL, recognize its parts, and understand size and privacy implications before embedding it.

Image2 min read

Image to Text: a practical guide

Copy text from photos and screenshots with local OCR.

Design & social3 min read

Use decorative Unicode without hiding essential information

Create a short bold Unicode label, understand which characters change, and keep important social-profile information readable.

SEO & websites3 min read

Minify JavaScript with compression while keeping a readable source

Use Terser on a small code block, inspect constant folding, and test the output in its real application.

PDF3 min read

Put JPEG images into a PDF with one image per page

Assemble JPEG files into a PDF, understand image-sized pages, and verify sequence and orientation before sharing.

Image3 min read

Convert JPEG to PNG for a compatible editing copy

Create PNG copies of JPEG images while understanding dimensions, existing compression artifacts, metadata, and batch downloads.