Typing Speed Test
- Shows your speed, accuracy and mistakes as you type
- Pick 15, 30 or 60 seconds, or set your own time
- Add your own paragraphs and type them
- Remembers your best score
Simple online tools for everyday work
Everything you need for daily tasks, in one place.
Ten small, focused tools for text, images, files and time. Measure your typing, write Markdown, make invoices, count words, set timers, run calculations, inspect photos, convert CSV to JSON and create QR codes. Each tool is free, and none of them needs an account.
The tools
Markdown Editor
- Write on the left, see the result on the right
- Turn words into bold, italic or bold-italic text you can paste anywhere
- Saves what you write automatically
- Counts your words and characters
Invoice Maker
- Fill in a short form, see the invoice update live
- Pick any color and one of three layouts
- Works with 7 currencies
- Save it as a PDF or keep it for later
Stopwatch
- Start, pause and carry on
- Record lap times
- Shows your fastest and slowest lap
Word Counter
- Counts words and characters as you type
- Shows reading time at a glance
- Also counts sentences and paragraphs
- Saves your text in this browser
Countdown Timer
- Set any time in hours, minutes and seconds
- Pick a quick preset from 1 to 60 minutes
- Pause, resume and start again
- Plays a sound when time is up
Calculator
- Add, subtract, multiply and divide
- Percent and negative-number keys
- Works with your keyboard
- Keeps a history you can reuse
Image Metadata Viewer
- See camera, date and file details
- Find GPS location when it is saved
- Shows image dimensions and size
- Your photo is never uploaded
CSV to JSON
- Paste CSV or open a file
- Detects commas, semicolons and tabs
- First row as keys, or plain rows
- Copy or download the JSON
QR Code Generator
- Make a QR code for a link or text
- Choose size, margin and error correction
- Download it as a PNG or SVG
- Updates as you type
Good to know
- Your stuff stays on your device. Files, images and text you load are handled in your browser. Scores, notes, invoices, drafts, history and settings are saved locally. Nothing is uploaded.
- PDFs come from your browser. Press "Download PDF" on the invoice page and choose "Save as PDF" in the print window.
- How it's built. Next.js and plain CSS. The Markdown converter is written by hand, with no libraries.
Frequently asked questions
What is DevTools Suite?
DevTools Suite is a free website with ten everyday tools for text, images, files and time: typing test, Markdown editor, invoice maker, stopwatch, word counter, countdown timer, calculator, image metadata viewer, CSV to JSON converter and QR code generator.
Is DevTools Suite free to use?
Yes. All tools are free and you do not need to create an account.
Where is my data stored?
Typing scores, Markdown text, invoice data, word counter drafts, calculator history and saved settings are stored only in your own browser. Images, CSV text and QR content are processed locally and never uploaded.
Are my images and files uploaded?
No. Image metadata, CSV conversion and QR code generation all run inside your browser. Nothing is sent to a server.
Can I download an invoice as a PDF?
Yes. Open the Invoice Generator, fill in your details and click Download PDF, then choose Save as PDF in the print window.