Find a tool.
Get back to work.
Convert images, work with PDFs, clean up text, check data or solve a calculation. Our complete toolbox now lives here, with a working utility, instructions and examples on every tool page.
Your everyday toolkit.
Pick a category or search the collection by name. Each tool has a dedicated guide, a worked example and useful tips.
Data
Browse data tools ↗Date & time
Browse date & time tools ↗Development
Browse development tools ↗Files
Browse files tools ↗Images
Browse images tools ↗Math
Browse math tools ↗Network
Browse network tools ↗Security
Browse security tools ↗Text
Browse text tools ↗Utilities
Browse utilities tools ↗A few familiar favourites.
Our original file tools sit alongside the wider open-source library. See credits and source →
MarkText Pro
Turn Markdown into clean plain text. Convert one document or a batch with flexible formatting presets.
Open MarkText Pro ↗WebP Studio
Convert WebP images to JPG or PNG, choose image quality, and download a whole batch as a ZIP.
Open WebP Studio ↗Batch Renamer Pro
Rename files with a shared prefix, sequential numbers, and zero padding. Download the organized files together.
Open Batch Renamer Pro ↗HEIC Instant
Convert iPhone HEIC and HEIF photos to JPG, directly in your browser.
Open HEIC Instant ↗Need something
more specific?
Tell us which step slows your team down and what the finished result should look like. We can discuss a custom converter, an internal application or an automated workflow.
Request a custom tool ↗Before you get started.
Privacy & offline-use notes ↗Are all the tools free?
Yes. The 452 public utilities are free to use without an account. Custom development, adaptations and business support are separate services.
What happened to tools.normandinsystems.com?
The complete toolbox is now part of normandinsystems.com. Existing tool links redirect to their corresponding pages here, so bookmarks still lead to the tool you need.
Where are my files and inputs processed?
The utilities process inputs in your browser. Some tools save field values in browser storage or the URL, and some download supporting resources. Read the privacy notes and each tool’s instructions before entering sensitive information. The toolbox pages do not load advertising or analytics scripts.
Do the tools work offline?
Some tools and their guides can work from the browser cache after a previous visit. Other tools need additional downloads or network services. Each tool explains relevant requirements; do not assume the entire collection works offline.
Can you build a tool for my business?
Yes. Share the workflow, input files and result you need. We build custom utilities, inventory websites and business automation, with scope and pricing agreed before work begins.