In-depth articles on image processing, streaming playback, document conversion and privacy — helping you get more done with online tools.
Pull emails, phone numbers, URLs, IPs and IDs out of messy logs and exports with preset or custom regex, split text into columns by delimiter, and deduplicate — all in your browser.
2026-08-11 · 6 min readRatio cheat sheet (1:1, 4:5, 16:9…), composition rules, cropping vs. resizing, and how to crop precisely online — free and local.
2026-08-11 · 6 min readEvery photo hides camera, date and often GPS location. What EXIF reveals, the privacy risks, and how to view and strip it online — free and fully local.
2026-08-11 · 6 min readBitrate, resolution, codec and container explained — with starting settings per use case, and local browser compression without uploading.
2026-08-11 · 7 min readWhat a Unix timestamp is, the classic seconds/milliseconds trap, and time-zone-aware conversion online — no guessing.
2026-08-11 · 6 min readCore patterns, classic mistakes, flags, and how to test regex with live highlighting, capture groups and replacement preview.
2026-08-11 · 7 min readQuoted-cell rules, header handling and type detection — and how to convert CSV, TSV and JSON safely online, locally.
2026-08-11 · 6 min readWhy word count matters for essays, SEO and social posts — and how to count words, characters, keyword frequency and reading time instantly, without uploading your text.
2026-08-11 · 6 min readWhat WPM means, how fast "fast" really is, and how to take a typing test online and improve your score with practice — all in your browser.
2026-08-11 · 6 min readFrom miles to kilometers, pounds to kilograms and Celsius to Fahrenheit — common conversion factors and how to convert anything instantly online.
2026-08-11 · 6 min readHow currency conversion works, the difference between reference and live rates, and when to trust a bank's quote instead of a free tool.
2026-08-11 · 6 min readWhen watermarks actually help, how to design one that balances visibility with subtlety, and how to add text or logo marks online — free and local.
2026-08-11 · 6 min readHow BMI is calculated, what the categories mean, and — just as important — what it doesn't measure. With an instant metric-or-imperial BMI calculator.
2026-08-11 · 6 min readEvery icon your website needs — favicon.ico, PNG sizes, apple-touch-icon and installable PWA icons — what each is for, and how to generate them all from one image, free and locally.
2026-08-11 · 7 min readFrom ID photo color swaps to product shots and avatars — learn how background removal works, how to use it step by step, and how to get clean cutouts free in your browser.
2026-08-10 · 8 min readNeed a blue background for an application and a white one for a passport? Here are the standard 1-inch/2-inch sizes, RGB references for white/blue/red, and how to swap backgrounds in your browser.
2026-08-10 · 7 min readWant that clean nine-square feed look? Learn how grid slicing works, how to set spacing and borders, and how to split one image into a perfect 3×3 grid in one click.
2026-08-10 · 6 min readMemes, product demos, tutorial animations — here's how GIF works, how to combine images or convert video clips into an animated GIF, and how to balance frame rate with file size.
2026-08-10 · 7 min readWhat is a Base64 image, when should you use it, and when should you avoid it? Covers the ~33% size overhead and the right way to embed images in HTML, CSS and mini apps.
2026-08-10 · 7 min readWhat is TTS good for? A practical guide to browser-based text-to-speech built on the Web Speech API — usage steps, speed and pitch tips, and common questions.
2026-08-10 · 6 min readHow to get accurate live transcription in your browser: use cases for meetings, video subtitles and dictation, plus practical tips to improve recognition accuracy.
2026-08-10 · 6 min readWhat makes a password strong? Why random passwords beat human-made ones, how to avoid credential-stuffing attacks, and the right way to generate and manage them.
2026-08-10 · 7 min readCan't read a minified API response? Learn JSON formatting, minifying, validation with line/column error locations, and structural diff comparison.
2026-08-10 · 7 min readHow exact age is calculated, common mistakes, and how to look up birthday countdowns, zodiac signs and Chinese zodiac animals — with an online age calculator walkthrough.
2026-08-10 · 6 min readClient sent several PDFs and you need one file? Need only a few pages? Too big to email? Step-by-step coverage of merging, splitting, reorganizing and two compression modes.
2026-08-07 · 7 min readPoster scans failing? Want to add a logo or change colors? Covers error correction levels L/M/Q/H, quiet zones, sizing and PNG/SVG export.
2026-08-07 · 6 min readInventory labels, sample IDs, retail barcodes: how to pick a symbology, calculate check digits, and get module width and quiet zones right for printing.
2026-08-07 · 6 min readWhy won't your m3u8 link open? Can RTMP play in a browser? A systematic guide to the most common streaming errors and how to debug a video stream.
2026-08-05 · 7 min readCompressing images speeds up your pages and saves storage. Compare the three major formats, quality settings and use cases, with a 5-step compression workflow.
2026-08-05 · 8 min readM3U8 is the playlist format behind HLS streaming. Learn the basics, then play .m3u8 links directly in your browser — no player install required.
2026-08-03 · 6 min readTurn PDF pages into PNG/JPG images for social sharing, newsletter illustrations and archiving. Covers per-page export, batch compression and packaged downloads.
2026-07-28 · 5 min readFiles never leave your device and computation happens locally — that's what fundamentally reduces data-leak risk. Here's how local processing works and where its limits are.
2026-07-20 · 6 min readLearn Francesco Cirillo's Pomodoro Technique — 25 minutes of focus followed by 5-minute breaks — and put it into practice with an online timer.
2026-07-12 · 5 min readThese articles link to and from the tool pages, forming topic clusters worth exploring: