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Practical Guides for Everyday Online Tasks

Step-by-step explanations for image compression, PDF workflows, HEIC conversion and JSON formatting. Each guide links to a related free ToolNovus utility and explains important limitations to check.

How to Compress an Image to 100KB Online

Learn how to reduce JPG, PNG and WebP image file sizes toward 100KB, understand quality trade-offs, and choose the right export settings.

How to Merge PDF Files Online for Free

A practical guide to combining PDF documents, checking page order, reviewing the merged file and handling sensitive documents carefully.

How to Convert HEIC to JPG Online

Understand HEIC and JPG, convert iPhone photos, choose an output format and check image quality and compatibility.

How to Format and Validate JSON Online

Learn how to beautify, minify and validate JSON, understand common syntax errors and use an online JSON formatter safely.

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