Tools | Manjula

Free Tools

Practical mini-tools I build and share for free.

Record your screen in Chrome with a timer, optional microphone audio, preview, and downloadable video.

Organize bulk image generation in ChatGPT with prompt queues, batch controls, and a faster creative workflow.

Convert JPG, JPEG, and PNG images into WebP with better web performance.

Crop, resize, and export images with aspect presets, rotation, and live preview.

Convert AVIF files into widely supported JPG images with no upload and adjustable quality.

Convert HEIC and HEIF photos into PNG files in the browser with no upload and batch download.

Find the safest and most comfortable time to go outside today using weather, air quality, UV, rain, wind, temperature, humidity, and daylight data.

Remove line breaks from text, keep paragraphs when needed, and copy the cleaned result instantly.

Simplify 2, 3, and 4 variable Boolean functions with minterms, don't-cares, visual groups, and SOP output.

Simulate FIFO, LRU, Optimal, Clock, LFU, and LIFO page replacement with page faults, hit rate, and a step-by-step frame table.

Generate QR codes quickly for URLs, contact info, or plain text.

Create an ATS-friendly resume online with templates, live preview, and PDF or DOCX export.

Create clean invoices with itemized rows and totals in seconds.