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Practical guides for real tasks — written by the people building the tools on this site.

Showing 2,080–2,100 of 2,462 articles

How to Resize an Image by Pixels or Percentage

📐 Image

How to Resize an Image by Pixels or Percentage

Resize a JPG, PNG, or WebP image by an exact pixel width and height or by a percentage scale, with an aspect-ratio lock to avoid accidental stretching.

How to Resolve a Hostname to Its IP Addresses

🌐 Network

How to Resolve a Hostname to Its IP Addresses

Look up the A (IPv4) and AAAA (IPv6) address records for a hostname in a clean, readable layout instead of raw command-line output.

How to Reverse an Audio File Sample by Sample

⏪ Audio

How to Reverse an Audio File Sample by Sample

Flip an audio clip backwards for a sound effect, hidden message, or backmasking experiment and export it as a lossless WAV, right in your browser.

How to Rotate and Flip an Image Online

🔄 Image

How to Rotate and Flip an Image Online

Rotate a photo in 90-degree steps or mirror it horizontally and vertically, straight in your browser, for the times a photo comes out sideways or upside down.

How to Run Focused Pomodoro Work Sessions

⏱️ Date & Time

How to Run Focused Pomodoro Work Sessions

Run focused work sessions with automatic short and long breaks using the Pomodoro Technique, with a sound chime when each session ends, right in your browser.

How to Score a Headline Before You Publish It

📰 SEO & Web

How to Score a Headline Before You Publish It

Score any headline on length, number usage, power words, and word distinctiveness, with a full breakdown of what to improve before it goes live.

How to Score Options With a Weighted Decision Matrix

📊 Productivity

How to Score Options With a Weighted Decision Matrix

Compare options by scoring each one against weighted criteria, with totals calculated automatically and the best option marked, instead of just going with your gut.

How to See Exactly What Keycode a Key Press Sends

⌨️ Developer

How to See Exactly What Keycode a Key Press Sends

Press any key and see its key, code, keyCode, location, and active modifier keys reported live by the browser, for debugging keyboard event handlers.

How to See the ed25519 SSH Key Format Before Generating One

🔑 Security & Privacy

How to See the ed25519 SSH Key Format Before Generating One

See exactly what an ed25519 SSH public key file looks like, then get the terminal command to generate a real, usable key pair, without touching a private key.

How to See the Full Working Behind Long Division

➗ Math & Science

How to See the Full Working Behind Long Division

Enter a dividend and divisor to see the full step-by-step long division working, not just the final answer, for checking homework or relearning the method.

How to See Your Title Tag Exactly as Google Will Show It

🔎 SEO & Web

How to See Your Title Tag Exactly as Google Will Show It

Preview your title tag, meta description, and URL exactly as they would appear in Google search results, with pixel-accurate title truncation.

How to Compress an Image Without Losing Quality

🗜️ Image

How to Compress an Image Without Losing Quality

Compress JPG, PNG, and WebP images with an adjustable quality slider to shrink file size before you upload or share, without an obvious visible drop in quality.

How to Slice a Sprite Sheet Into Separate Icons

🧩 Image

How to Slice a Sprite Sheet Into Separate Icons

Slice an evenly-spaced sprite sheet into individual icon files by column and row count, downloadable one at a time or all at once, without manual cropping.

How to Solve Any Circle's Area or Circumference

⭕ Math & Science

How to Solve Any Circle's Area or Circumference

Enter a circle's radius, diameter, area, or circumference and get the other three calculated instantly, no matter which single measurement you started with.

How to Sort a List of Lines Alphabetically or by Length

🔡 Text & Writing

How to Sort a List of Lines Alphabetically or by Length

Sort a list of lines alphabetically, by length, or numerically, with optional case-insensitivity and duplicate removal, without opening a spreadsheet.

How to Sort CSV Data by Any Column

📋 Data & CSV

How to Sort CSV Data by Any Column

Sort CSV data by a chosen column, ascending or descending, with optional numeric sorting, without opening a spreadsheet app just to reorder rows.

How to Spin a Wheel to Pick From Your List

🎡 Generators

How to Spin a Wheel to Pick From Your List

Type any list of options and spin an animated wheel to pick one at random, for group decisions, giveaways, and breaking a tie fairly and visibly.

How to Split a Group Into Fair Teams

👥 Generators

How to Split a Group Into Fair Teams

Shuffle a list of names and split it into a set number of teams or a fixed team size, with balanced team sizes every time, for sports, classrooms, and events.

How to Split a Photo Into an Instagram Grid

📱 Social Media

How to Split a Photo Into an Instagram Grid

Split one image into an evenly cropped 3x3 or 2x2 grid of tiles for a seamless profile grid layout, downloadable individually or all at once.

How to Turn Comma-Separated Text Into a List

📋 Text & Writing

How to Turn Comma-Separated Text Into a List

Split comma-separated text into a clean line-by-line list, with optional trimming, deduplication, and alphabetical sorting, without opening a spreadsheet.

How to Spot a Phishing Link Before You Click It

🔒 Security & Privacy

How to Spot a Phishing Link Before You Click It

Check a URL against seven common phishing red flags — @ tricks, IP hosts, brand lookalikes, and more — entirely offline, before you click something suspicious.