Blog
By Siavash Ghanbari ยท Founder of Emojar
๐ฑSocial Media Image Sizes, and When to Crop or Fit Instead
A cheat sheet of post, story, cover and profile sizes for seven networks, plus a simple way to decide whether to crop your photo or fit it on a background.
Tool GuideImageImagesSocial Media๐8 Everyday Length Conversions: Miles, Feet and Inches
Race distances, height in feet and inches, TV screens, nautical miles: practical metric-imperial length conversions with exact factors and worked examples.
Tool GuideUnitsConversionHow-toยฉ๏ธCorner or Tiled Watermark? How to Choose One for Your Photos
Credit line, logo or full-image pattern? A decision guide to watermark style, size and opacity, plus how to watermark a whole photo shoot in one batch.
Tool GuideImageImagesWatermark๐How Strong Is a Random Password? Entropy, Explained
Why a 16-character random password has about 104 bits of entropy, what that means in guessing time, and how a secure generator picks every character.
Tool GuideGeneratorsSecurityPasswordsโฑ๏ธLap Time vs Split Time, and How to Time Intervals Well
A lap is the time since your last tap; a split is the total time so far. A worked running example, pacing math, and tips for timing anything accurately.
Tool GuideDate & TimeTimeFitness๐ทWebcam Not Working? A Checklist Before Your Next Call
Black screen, blocked access, wrong camera or a choppy picture? Work through the usual causes in order and check your real resolution and frame rate.
Tool GuideDevice TestsDevicesTroubleshooting๐ตWhich MP3 Bitrate to Use When Extracting Audio From Video
96, 128, 192, 256 or 320 kbps? How to pick an MP3 bitrate for speech, music and podcasts, what each costs in megabytes, and why a higher one can't add quality.
Tool GuideAudio & VideoAudioVideoโ๏ธ6 Practical Ways to Split a PDF (With the Exact Settings)
From one file per receipt to separate chapters and odd/even pages for manual duplex printing, here are six real uses for splitting a PDF and what to type.
Tool GuidePDFSplitProductivity๐๏ธHow Image Compression Works (and What the Quality Slider Does)
Why does a 75% quality JPG look identical to the original at a fraction of the size? Learn what compression throws away and how to pick settings.
Tool GuideImageImagesCompression๏ผ How to Calculate Percentages: 7 Everyday Examples
Three percentage formulas cover almost every real question, from test scores to rent hikes. Here's which one to use, with worked numbers for each case.
Tool GuideCalculatorsMathHow-to๐งพHow to Pretty-Print JSON API Responses and Compare Them
Turn a one-line API response into readable, indented JSON, then sort keys so two payloads diff cleanly. A practical walkthrough with examples.
Tool GuideDeveloperJSONAPIs๐ขHow Word Counters Work: Hyphens, Numbers and Reading Time
Why does don't count as one word and 2026 as another? A plain-English look at how word counts, reading time and speaking time are calculated.
Tool GuideTextWritingWord Count๐Making a Passport Photo at Home, From Phone Snap to Print
A start-to-finish walkthrough for a DIY passport photo, from taking the shot and framing the head to exporting at 300 DPI and printing a sheet.
Tool GuideImageImagesPassport๐งฐEmojar Now Has 140+ Free Tools That Run in Your Browser
Emojar has grown from an emoji site into 140+ free online tools โ image, PDF, text, developer, calculators and more โ that never upload your files.
Tool GuideAnnouncementNew ToolsPrivacy๐ฑHEIC to JPG, PNG or WebP? Choosing the Right Format
Converting iPhone HEIC photos? When JPG is the right call, when PNG or WebP makes sense, and which quality setting keeps your photos looking the same.
Tool GuideImageImagesiPhone๐ฏHow Compressing a Photo to an Exact KB Size Actually Works
What happens when you shrink an image to 20, 50 or 100 KB: the quality search, when the photo gets resized, and how to keep more detail under a tight limit.
Tool GuideImageImagesCompression๐How to Combine Application Documents Into a Single PDF
A job, visa or rental application wants "one PDF"? A walkthrough for turning a CV, certificates, scans and photos into one tidy, correctly ordered file.
Tool GuidePDFMergeHow-to๐JPG vs PNG vs WebP vs PDF โ Which Format Should You Convert To?
Not sure whether a picture should be a JPG, PNG, WebP or PDF? A plain-English guide to picking the right format, with the trade-offs that matter.
Tool GuideImageImagesFile Formats๐ณEmoji Kitchen on Emojar โ Combine Any Two Emojis
Mix any two emojis using Google Emoji Kitchen and download the mashup. Free, instant, no sign-up required.
Tool GuideEmoji KitchenCreative๐Emoji Unicode Inspector โ See Every Codepoint Instantly
Paste any text and instantly see the Unicode codepoints, names, versions, and categories for every character. Built for developers and emoji enthusiasts.
Tool GuideUnicodeDeveloper