Everyday tools, free forever, right in your browser.

Open the Invoice Generator, add your business name and logo, your client's details, and each item with its quantity and price. The total updates as you type, and you can download the finished invoice as a PDF or PNG image — no sign-up and no watermark.

Under the Nigeria Tax Act 2025, the first ₦800,000 of annual income is taxed at 0%, then 15% up to ₦3 million, 18% up to ₦12 million, 21% up to ₦25 million, 23% up to ₦50 million and 25% above that. Rent relief of 20% of your rent (capped at ₦500,000) reduces your taxable income, and anyone earning ₦840,000 a year or less pays no PAYE at all. The PAYE Tax Calculator works it out band by band for your salary.

Multiply the number of shares you own by the stock's dividend per share, then take off 10% withholding tax. The NGX Stock & Dividend Calculator does this for all 146 stocks on the Nigerian Exchange: enter how much you want to invest and it shows how many shares your money buys at the last closing price and the dividend you would receive after tax.

Enter the amount in the Naira Converter and it converts between US dollars, pounds, euros and naira, showing the rate the way people quote it in Nigeria — like ₦1,350 to $1 — instead of a confusing decimal.

Drop a JPG, PNG or WebP photo into the Image Compressor and pick a quality around 80%: the file shrinks a lot while still looking the same on screen. Compression runs in your browser, so your photo is never uploaded anywhere.

Add your JPG, PNG or WebP images to the Image to PDF tool and download one PDF with each image on its own page. There is no upload and no sign-up — the conversion happens on your device.

Paste the link, text, phone number or Wi-Fi details into the QR Code Generator, choose a size and download the QR code as a PNG. The codes do not expire and there is no sign-up.

The AI Image Checker reads the image file itself for AI fingerprints — content credentials (C2PA), generator metadata and hidden text chunks left by AI image tools. It is a basic check: a clean result does not prove an image is real, but a fingerprint is strong evidence it was AI-made.

Upload the screenshot, receipt or document photo to Image to Text (OCR) and it extracts the words as text you can copy and edit. The reading happens in your browser, on your device.

The AI Prompt Generator builds the prompt for you: pick what you want to create, choose the AI tool — ChatGPT, Claude, DeepSeek, Gemini, Midjourney, DALL-E or Stable Diffusion — add style, lighting and mood, then copy the polished prompt.

Open the Background Remover, add your photo and press Remove background. An AI model that runs entirely in your browser cuts out the subject, and you download the result as a transparent PNG. Your photo is never uploaded, and there is no sign-up or API key.

Paste your JSON into the JSON Formatter & Visualizer and press Format. Valid JSON is pretty-printed with your choice of indentation and shown as a collapsible tree you can explore; invalid JSON gets an error message that points to where the problem is.

For an isolated-margin long, liquidation is roughly entry × (1 − 1/leverage + maintenance margin rate); for a short it is entry × (1 + 1/leverage − maintenance margin rate). The Liquidation Price Calculator does it from your entry, leverage and side, and shows how far price must move. Exchanges differ slightly, so treat it as an estimate.

Decide the dollars you will lose if your stop is hit (for example 1% of your account), then divide that by the distance between entry and stop. The Position Size Calculator returns the exact quantity and notional to trade.

It depends on the live gas price: a typical DEX swap uses about 150,000 gas, so the cost is gas price × 150,000 × the ETH price. The Gas Fee Estimator shows live gas for Ethereum, BNB Chain and Base and the dollar cost of a transfer, swap and mint.

Paste your text into the X Thread Splitter and it breaks it into numbered tweets of at most 280 characters each, ready to copy one by one.

Pick the coin and amount in the Crypto Converter and it converts to NGN and USD at live CoinGecko prices, showing when the price was fetched.

Open the Color Picker, set the colour with the RGB or HSL sliders (or type a HEX value), adjust the opacity slider, and copy whichever format you need — HEX, HEX8, RGB, RGBA, HSL or HSLA.

Subtract the old number from the new number, divide by the old number and multiply by 100. The Percentage Calculator does all three everyday jobs: X% of Y, X as a percentage of Y, and the percentage change between two numbers.

Paste text into the Base64 Encoder & Decoder and it converts to Base64 — you can also encode a whole file. To decode, paste a Base64 string and get the original text back, or download the decoded bytes as a file.

Write or paste markdown into the Markdown Editor and the rendered preview updates as you type, with code blocks syntax-highlighted. Then copy the HTML or download it, or save the markdown source as a .md file.

Open the Screen Recorder, choose your screen, your webcam, or both together, and press Start. Your browser asks which screen or window to share; when you stop, watch the recording back and download it as a video file. Nothing is installed and nothing is uploaded.

Use the Password Generator: pick a length of 16 or more and turn on uppercase, lowercase, numbers and symbols. The password is generated with your browser's secure random generator, the strength meter shows its entropy, and nothing leaves your device.

BMI is your weight in kilograms divided by your height in metres squared. Under 18.5 is underweight, 18.5 to 24.9 is the normal WHO range, 25 to 29.9 is overweight and 30 or above is obese. The BMI Calculator accepts kg or lbs and cm or ft/in, and also shows the healthy weight range for your height.

Start with your BMR — the Mifflin-St Jeor equation uses your sex, age, weight and height — then multiply by an activity factor from 1.2 (sedentary) to 1.9 (very active) to get your TDEE, the calories that maintain your weight. The Calorie Calculator (TDEE) shows both, plus lose and gain targets.

A deficit of about 500 kcal a day below your TDEE is the standard guide for losing roughly 0.5 kg a week; 250 kcal a day is a gradual pace and 1,000 kcal a day an intensive one. The Calorie Deficit Calculator works out your daily target at each pace and estimates the weeks to your target weight. Results are estimates, not medical advice — consult a clinician for personal health decisions.

Type one label and value per line (for example Marketing,35000) into the Pie Chart Generator, Bar Chart Generator or Line Chart Generator. The chart draws as you type: customise the colours, switch the pie to a doughnut with an adjustable hole, flip the bars horizontal, or smooth the line, then download the chart as a PNG or copy an HTML embed code. Everything runs in your browser.

Open the Meta Tag Generator, fill in your page title, description, keywords, author and canonical URL, and the clean HTML is built as you type — including Open Graph tags (og:title, og:description, og:image, og:url, og:type) and Twitter Card tags when their toggles are on. A live preview shows how the page will look in Google results and on social media; then copy the HTML or download it as a file.

Paste your base URL into the UTM Builder and fill in utm_source, utm_medium and utm_campaign (plus the optional utm_term and utm_content). The full tagged URL is generated as you type, correctly encoded and keeping any existing query string or #fragment. Use the presets for Google, Facebook, X, LinkedIn or a newsletter, then copy the link in one click.

Pick a type in the Schema Markup Generator — Article, Product, FAQ Page, Organization, Local Business, Person, Event, Recipe or HowTo — fill in its fields, and valid JSON-LD is generated as you type, wrapped in the script tag you paste into your page head. Copy it or download it as a file.

Enter your topic and pick a category in the TikTok Hashtag Generator — Dance, Comedy, Fitness, Food, Travel, Beauty, Gaming and 17 more — and it generates 12 relevant hashtags you can copy in one click. TikTok recommends using just 3 to 5 hashtags per video, so pick the most relevant ones rather than pasting all 12.

Enter your topic or mood in the Instagram Caption Generator and pick a tone — Funny, Inspirational, Aesthetic, Promotional or Casual — to get five caption options with emojis and hashtags included, each with its own copy button. Shuffle for a fresh set if none of them fit.

Enter your phone number in full international format — country code first, no plus sign or spaces — in the WhatsApp Link Generator, add an optional pre-filled message, and copy the wa.me link. Anyone who taps it opens a chat with you straight away, without saving your number first.

Open the Merge PDF tool, add two or more PDF files, drag them into the order you want (or use the move up and move down buttons), then press Merge PDFs and download the combined file. It runs in your browser with pdf-lib, so your files are never uploaded to a server.

Open the Extract PDF Text tool and choose your PDF. The text layer of every page is extracted and shown page by page; copy it or download it all as a .txt file. A page that is a scanned image has no text layer — the tool flags those pages clearly instead of showing a blank.

Open the Fill & Sign PDF tool and upload the PDF. Add text, a date, or a signature drawn on the signature pad, choose the page, and the item is placed on the page — drag it where it belongs, resize it with the corner handle, then download the filled PDF. It works on any PDF, even without fillable form fields, because items are placed on top of the rendered page.

Yes — all 52 tools are free with no sign-up, and they run entirely in your browser, so your files never leave your device.