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Image ConverterConvert images between PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, ICO, PSD and more.Image CompressorCompress images in batch with no visible quality loss.Resize Image in Pixels or KBResize an image by exact pixel width and height, and compress it to a target file size in KB.Crop ImageCrop any image to the exact size and shape you need, right in your browser.Rotate ImageRotate any image left or right by 90 degrees, flip it horizontally or vertically, and fine-tune the angle anywhere from -180 to 180 degrees, right in your browser.Add Watermark to ImageAdd a text or logo watermark to any image online, free, right in your browser.Image to TextThis free image to text converter pulls editable text out of any JPG, PNG, or WebP, right in your browser.WEBP ConverterConvert any image to WEBP format for smaller file sizes without sacrificing quality.Favicon GeneratorTurn any logo or square image into a complete favicon pack: every standard size from 16 to 512 px, a multi-resolution favicon.ico, an apple-touch-icon, a ready-to-paste HTML snippet, and a Web App Manifest.Free Photo EditorCrop, add text, draw, rotate, adjust, and filter any photo, then download as PNG, JPG, or WebP.Add Image BorderAdd a clean border to any image in seconds.JPG ConverterConvert any image to JPG format instantly.PNG ConverterConvert any image to PNG format instantly.HEIC to JPGTurn iPhone HEIC and HEIF photos into JPG or PNG that open anywhere.Image to Base64Turn any image into a Base64 string or data URI in your browser, with ready CSS, HTML, and Markdown snippets.Flip ImageMirror any image horizontally or vertically in one click, right in your browser.Image UpscalerUpload an image, pick 2x, 4x, 8x, or a custom factor, and download the enlarged version in seconds.Color Palette GeneratorBuild beautiful five-color palettes in seconds.Meme GeneratorUpload any image, add bold Impact captions and emoji stickers, drag everything into place, and download a clean PNG.
All Image Tools Convert, compress, and edit images. No signup, no upload. Browse all 66
Merge PDFCombine multiple PDFs into one document.Split PDFPick page ranges, split every N pages, or extract single pages.Compress PDFType the size you need in KB and get a PDF that matches it, with text kept sharp.PDF to WordTurn any PDF into an editable Word document right in your browser.Word to PDFConvert a Word document to PDF right in your browser.PDF to ImageConvert a PDF to JPG, PNG, or WebP image in seconds.Images to PDFFree Image to PDF converter that runs entirely in your browser.PDF to TextPull the text out of a PDF and copy it or save it as a plain .txt file, right in your browser.Rotate PDFRotate individual pages or all pages of any PDF in your browser.Unlock PDF PasswordA free PDF unlocker that removes the password from any PDF entirely in your browser.Protect PDF with PasswordAdd a password to any PDF in seconds.Sign PDFAdd your signature to any PDF without uploading it.Crop PDFTrim the margins off a PDF, right in your browser.Delete Pages from PDFRemove unwanted pages from any PDF, right in your browser.Extract Pages from PDFKeep only the pages you need from any PDF.Add Page Numbers to PDFInsert page numbers into any PDF with live preview.Excel to PDF ConverterConvert Excel and CSV spreadsheets to a clean, print-ready PDF in seconds.Add Watermark to PDFStamp any PDF with a text watermark, right in your browser.Redact PDFBlack out sensitive text, names, and images in a PDF, then download a clean copy where the covered content is permanently removed.PDF to ZIPBundle multiple PDF files into a single compressed ZIP archive directly in your browser.
All PDF Tools Merge, split, and convert PDFs. Nothing leaves your browser. Browse all 35
SEO CheckerRun a full on-page SEO audit on any URL in seconds.Meta Tags AnalyzerA free meta tag checker and analyzer.Broken Link CheckerThe Pixellize Broken Link Checker finds every dead link on a page or an entire website.Redirect Chain CheckerA free redirect checker and URL redirect tracer.Robots.txt GeneratorA free robots.txt generator.XML Sitemap GeneratorA free XML sitemap generator.Schema Markup GeneratorBuild valid JSON-LD structured data for articles, products, FAQs, local businesses, and more.SERP Snippet PreviewSee how your title, URL, and meta description look in Google search before you publish.Keyword Density CheckerSee which words and phrases dominate any page or text.Canonical URL CheckerPaste any URL to instantly find the canonical URL of a webpage.SSL Certificate CheckerCheck any website's SSL certificate expiration date and days until expiry, plus the issuer, key size, signature algorithm, version, serial number, and full Subject Alternative Name list.Word CounterType or paste any text and watch the numbers update live: words, characters, sentences, paragraphs, and lines, plus reading and speaking time and your top keywords.Open Graph CheckerCheck any URL for Open Graph and Twitter Card meta tags, and see exactly how the page will look when shared on Facebook, LinkedIn, and X.Robots.txt CheckerFetch and analyze any website robots.txt file.Hreflang GeneratorBuild correct hreflang tags for every language and region version of your pages.Title & Meta Description CheckerCheck your title tag and meta description length against Google limits, with a live SERP snippet preview for desktop and mobile.Image Alt Text Checker: Find Missing and Empty Alt TagsThe free alt text checker scans a page or a whole website for images missing alt attributes and empty alt text.Heading Tags CheckerAnalyze the heading structure (H1-H6) of any webpage.Sitemap FinderFind any website's sitemap in seconds.Twitter Card GeneratorBuild Twitter / X card meta tags with a live share preview, then copy them into your page head.
All SEO Tools Audit and fix on-page SEO fast. Free, no signup. Browse all 43
JSON FormatterA free JSON formatter, viewer, and validator.Base64 Encode and DecodeConvert text to Base64 and decode Base64 back to text right in your browser.Regex TesterTest a regular expression against your text in the browser.Diff CheckerCompare two blocks of text in your browser and see exactly what changed, line by line.HTML FormatterBeautify messy HTML with clean indentation, or minify it down to one line, right in your browser.CSS Gradient GeneratorBuild linear, radial, and conic CSS gradients with a live preview, then copy the code.Hash GeneratorGenerate cryptographic hashes from any text in your browser.JWT DecoderDecode a JSON Web Token in your browser.UUID GeneratorGenerate RFC 4122 UUIDs in your browser.SQL FormatterA free online SQL formatter and beautifier.Markdown EditorWrite Markdown with a live preview that updates as you type.URL Encode and DecodeA free URL decoder and encoder.
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Unzip FilesOpen and extract any ZIP archive right in your browser.Create ZIP FileDrag and drop your files, review the list, then click one button to download a ready-made ZIP.MP4 to MP3Pull the audio out of an MP4 video and save it as an MP3, right in your browser.CSV Viewer & EditorOpen a CSV file in a table, sort it, edit cells, add or remove rows and columns, then export it again.RAR to ZIP ConverterConvert RAR to ZIP online, free, with no WinRAR or software to install.P2P File SharingPick your files, copy the share link, and anyone who opens it downloads straight from your browser, encrypted end to end.
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TikTok Video DownloaderPaste any public TikTok link and save it as an MP4 with no watermark, in HD or SD, plus the sound as MP3.Facebook Video DownloaderPaste any public Facebook reel or video link and save it as an MP4 in HD or SD.Instagram Profile Picture DownloaderDownload any Instagram profile picture in full size for free.Social Media Image ResizerUpload one image and export it at the exact size for Instagram posts and stories, YouTube thumbnails, Facebook and LinkedIn covers, and X headers.Fake Tweet GeneratorMake a realistic tweet or X post mockup for a blog post, slide, or example, then download it as an image.YouTube Timestamp Link GeneratorPaste a YouTube link, set a start time in hours, minutes, and seconds, and get a shareable link that jumps straight to that moment.
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Free Resume BuilderBuild a clean, ATS-friendly resume in your browser.Invoice GeneratorCreate a professional invoice in minutes and download it as a PDF.QR Code GeneratorCreate a custom QR code for a URL, text, email, phone, or SMS.Password GeneratorCreate a strong, random password from 6 to 64 characters with uppercase, lowercase, numbers, and symbols.Age CalculatorFind your exact age in years, months, and days from your date of birth, plus the totals in months, weeks, days, hours, minutes, and live-ticking seconds.Percentage CalculatorSix percentage calculators in one place: percent of a number, what percent, reverse percentage, percentage change, increase or decrease, and difference.Case ConverterConvert your text to Title Case using APA, Chicago, AP, MLA, and four more style guides, or switch to sentence case, UPPERCASE, and lowercase.
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Image Converter Image Compressor Resize Image in Pixels or KB Crop Image Rotate Image Add Watermark to Image Image to Text WEBP Converter Favicon Generator Free Photo Editor Add Image Border JPG Converter PNG Converter HEIC to JPG Image to Base64 Flip Image Image Upscaler Color Palette Generator Meme Generator View all

Merge PDF Split PDF Compress PDF PDF to Word Word to PDF PDF to Image Images to PDF PDF to Text Rotate PDF Unlock PDF Password Protect PDF with Password Sign PDF Crop PDF Delete Pages from PDF Extract Pages from PDF Add Page Numbers to PDF Excel to PDF Converter Add Watermark to PDF Redact PDF PDF to ZIP View all

SEO Checker Meta Tags Analyzer Broken Link Checker Redirect Chain Checker Robots.txt Generator XML Sitemap Generator Schema Markup Generator SERP Snippet Preview Keyword Density Checker Canonical URL Checker SSL Certificate Checker Word Counter Open Graph Checker Robots.txt Checker Hreflang Generator Title & Meta Description Checker Image Alt Text Checker: Find Missing and Empty Alt Tags Heading Tags Checker Sitemap Finder Twitter Card Generator View all

JSON Formatter Base64 Encode and Decode Regex Tester Diff Checker HTML Formatter CSS Gradient Generator Hash Generator JWT Decoder UUID Generator SQL Formatter Markdown Editor URL Encode and Decode View all

Unzip Files Create ZIP File MP4 to MP3 CSV Viewer & Editor RAR to ZIP Converter P2P File Sharing View all

TikTok Video Downloader Facebook Video Downloader Instagram Profile Picture Downloader Social Media Image Resizer Fake Tweet Generator YouTube Timestamp Link Generator View all

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color blindness

All articles tagged "color blindness". 1 article.

Sep 29, 20266 min read

How to Design for Color Blindness: A Practical Guide

A practical guide to design for color blindness: the rules that matter and how to test your work with a free simulator.

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