Insights
310 short, practical guides. One for every tool on the site, in plain English.
310 guides
Beautify, minify and browse JSON as a tree
Find JSON errors by line and fix them
Minify JSON and see the bytes saved
Convert JSON arrays to CSV or Excel
Convert CSV, TSV or Excel sheets to JSON
Convert JSON to well-formed XML
Convert XML to JSON, attributes kept
Convert JSON to YAML as you type
Convert YAML, including multi-document files, to JSON
Generate TypeScript types or Zod from JSON
Convert JSON to TOON to shrink LLM prompts
Encode or decode Base64 text and files
Encode or decode URLs and query strings
Encode or decode HTML entities
Minify HTML with inline CSS and JS
Format HTML with indentation and preview
Minify CSS files, one or many
Format CSS with proper indentation
Minify JavaScript with Terser
Format JavaScript code
Format SQL for 16 database dialects
Decode, verify and sign JSON Web Tokens
Generate UUID v1, v4, v5 and v7 in bulk
MD5, SHA-256, SHA-3 and HMAC for text or files
Test regular expressions live
Build and read cron schedules
Convert Unix time to dates and back
Convert Markdown to HTML
Convert HTML or a web page to Markdown
Convert cURL commands to code in 19 languages
Look up HTTP status codes and SEO impact
ASCII and extended codes in dec, hex and binary
Look up MIME types or check a file's real type
Reference for 36 DNS record types
View JSON as a collapsible, searchable tree
Convert JSON to an .xlsx Excel workbook
Validate JSON against a JSON Schema
Check YAML syntax and find errors by line
View and edit HTML with a live preview
Create and verify HMAC signatures
Full-site WCAG 2.1 audit with fix code for every issue
WCAG AA/AAA contrast ratio with passing colors
Check one page or HTML against 70 WCAG 2.1 rules
WCAG 2.1 AA scan, deadline calculator and Title II readiness checklist
Every WCAG 2.0, 2.1 and 2.2 criterion, with saved progress
43-item ADA Title III checklist with WCAG 2.1 AA fixes
Ontario AODA checklist filtered by organization size and sector
W3C-style accessibility statement, 4 languages
See images and palettes with 4 types of color blindness
Palettes where every color passes WCAG contrast
Build a VPAT 2.5 style accessibility report
Build meta, OG and X tags
Audit meta tags for one or 20 URLs
Build a robots.txt with presets
Test URLs against any robots.txt
Build an XML sitemap with images
Build an HTML sitemap page
Generate and edit llms.txt
Validate and fix a site's llms.txt
Crawl your site, auto-detect + generate JSON-LD for every page
JSON-LD or microdata for 10 types, plus a validator
Build FAQPage JSON-LD by hand, paste or URL import
Build Article, BlogPosting or NewsArticle JSON-LD
Build Product JSON-LD with variants, offers and reviews
Build LocalBusiness JSON-LD with hours and locations
Build Event JSON-LD with tickets and recurring dates
Build JobPosting JSON-LD for Google for Jobs
Build Course JSON-LD with runs, price and syllabus
Build VideoObject JSON-LD with key moments
Build SoftwareApplication or WebApplication JSON-LD
Build Organization JSON-LD with @id and identifiers
Build Person or ProfilePage JSON-LD
Build AboutPage JSON-LD linked to your organization
Build ContactPage JSON-LD with contact points
Build WebPage JSON-LD with breadcrumb and topics
Build CollectionPage JSON-LD with an ItemList
Build PodcastSeries and PodcastEpisode JSON-LD
Build ItemList JSON-LD for list pages
Build Service JSON-LD with price range and packages
Build BreadcrumbList JSON-LD, one page or bulk
Build OG tags with live previews
Check OG tags and link previews
Build X card tags with preview
Build, bulk and check hreflang
Build Apache and Nginx 301 rules
Build and check canonical tags
Preview your Google snippet
Count keyword and phrase density
Build UTM tracked campaign links
Check status codes for many URLs
Trace redirect chains, one or bulk
Extract and check JSON-LD, microdata and RDFa
Build Recipe JSON-LD with times, steps and nutrition
Build Review and AggregateRating JSON-LD
Build HowTo JSON-LD with supplies, tools and steps
Check a page's H1 to H6 structure
Extract and download images from a page
List every link on a page
See a page as a crawler sees it
Find a domain's registration date
Bulk-check domain authority scores
Crawl a site and find dead links
Check a sitemap.xml for errors
Pick colors and copy HEX, RGB, HSL, CMYK, OKLCH
Generate palettes with lock, harmonies and export
Convert HEX color codes to RGB and RGBA
Convert RGB and RGBA values to HEX
Convert HEX color codes to CSS HSL
Convert HSL and HSLA values to HEX
Mix two or more colors at any ratio
Extract a color palette from any image
Tints, shades and tones of any color
RGB and RYB color wheel with 8 harmonies
Convert RGB or HEX to CMYK and back
Nearest Pantone Solid Coated match for any color
Find the CSS color name for any HEX
Tailwind 50 to 950 scale generator and palette
All 19 Material Design hues with HEX codes
Convert any color to HEX, RGB, HSL, CMYK, LAB
Visual clip-path editor with SVG import and PNG tracing
Build linear, radial and conic gradients
Build layered box shadows with presets
Round corners, per corner or as blobs
Build @keyframes animations from presets
Build flex layouts with per-item controls
Build grid layouts, areas and templates
Rotate, scale, skew and translate in 2D or 3D
Apply CSS filters to your own image
Build frosted and liquid glass effects
Build soft UI shadows from one color
Convert SVG into a CSS data URI and back
Layered text shadows, glows, outlines and 3D
Draw CSS easing curves and compare motion
Make CSS triangles and tooltip arrows
Annotate, frame and redact screenshots
Add or remove GPS in photos, batch
Compress images by quality or to a KB target
Resize in px, %, cm or inches, with KB limit
Drag to crop, circle crop and size presets
Remove backgrounds from photos and logos
Upscale images 2x, 4x or 8x with AI
Convert JPG images to PNG, one or many
Convert PNG to JPG with quality control
Convert JPG to WebP for faster pages
Convert PNG to WebP, transparency kept
Convert WebP to JPG that opens anywhere
Convert WebP to PNG, keeps transparency
Convert iPhone HEIC photos to JPG
Convert iPhone HEIC photos to lossless PNG
Convert SVG files or code to PNG in bulk
Multi-size ICO files, batch and reverse
Combine images into a PDF
Text or logo watermarks, in bulk
Images to Base64 in 11 formats
Decode Base64 or data URIs to images
Mirror images horizontally or vertically
Rotate images 90, 180 or any angle
Apply one filter to many photos at once
Extract text from images in 30 languages
Favicon.ico, PNG sizes and manifest in one ZIP
Passport photos for 20 countries
Blur backgrounds, faces or any area
Pixelate areas, faces or make pixel art
Add styled text layers to photos
View, export and remove photo metadata
Add meme text to any photo, no watermark
Convert AVIF images to JPG, one or many
Convert TIF and TIFF scans to JPG
Set 300 DPI on JPG and PNG, no quality loss
Make an animated GIF from images
Compress video in your browser, no upload
Turn a video clip into a small, clean GIF
Cut the start, end or middle of a video
Remove or silence the sound in a video
Combine PDFs and images into one PDF
Split a PDF by ranges, size or bookmarks
Reduce PDF size to a target or by level
Extract PDF tables to Excel or CSV
Convert PDF pages or images to JPG
Combine JPG photos into a PDF
Convert PDF pages to PNG
Combine PNG images into a PDF
Rotate PDF pages and save permanently
Insert page numbers
Add a text or logo watermark
Remove PDF password
Password protect a PDF
Sign with signature, initials and date
Reorder, rotate, duplicate or remove pages
Remove pages or blank pages from a PDF
Pull chosen pages into a new PDF
Crop PDF pages and trim white margins
View PDFs in your browser
Put 2 to 16 PDF pages on each sheet
Interleave pages from two or more PDFs
Cut two-page scans into single pages
Save the pictures inside a PDF as files
Turn iPhone HEIC photos into a PDF
Make a colour PDF gray or black and white
Edit or remove a PDF's title, author and dates
Convert PDF to an editable Word .docx
Turn PDF pages into editable PowerPoint slides
Convert Word .docx files to PDF
Convert PowerPoint .pptx slides to PDF
Convert Excel sheets to PDF, columns fitted
Convert HTML code, files or web pages to PDF
Convert PDF to clean Markdown
Extract plain text from PDF files
Make scanned PDFs searchable in 44 languages
Permanently remove text and areas from a PDF
Find text and visual differences between two PDFs
Fix damaged or corrupted PDF files
Add text, images, shapes and highlights to a PDF
Type into PDF form fields or fill flat forms
Scan documents to PDF with your camera
Lock form fields and annotations into the page
Clean ChatGPT, Claude and AI watermark characters
Count words, characters, keyword density
Count characters with/without spaces
Sentence, Title, UPPER, camelCase and more
Generate lorem ipsum placeholder text
Reverse, flip upside down or mirror text
Remove duplicate lines, keep first or last
Sort lines A-Z, natural, numeric or by column
Find and replace with bulk rules and regex
Compare two texts side by side and merge
Estimate reading and speaking time
Turn titles into clean URL slugs, one or many
Repeat text up to 10,000 times
Delete blank and whitespace-only lines
Join lines into one paragraph
Add or remove line numbers
Text to binary, hex or decimal and back
Text to Morse code and back, with audio
Decode Caesar cipher and ROT13
Title case in AP, APA, Chicago, MLA
Trim leading and trailing spaces per line
Remove HTML tags from text
Pull emails out of text, files or pages
Pull URLs out of text, files or HTML
Pull numbers out of text
Count word and phrase occurrences
Add or remove text at the start and end of lines
Convert tabs to spaces and back
Count sentences and sentence length
Make a word cloud from any text
Spell text in the NATO alphabet
Remove or keep lines that contain a word
Find items only in one list or in both
Turn a column into a comma-separated list
Wrap text or split it onto new lines
Extract a website's logo
Extract brand colors from a site
Detect fonts used on a site
Detect a site's tech stack
Download a site's brand assets
Visualize a sitemap as a tree
Create a logo with icons, fonts and colours
Find Google Fonts that go together
WHOIS for domains, IPs and AS numbers
Check DNS records with TTL, DNSSEC and PTR
See your public IP, ISP and location
Inspect HTTP headers and grade security
Check SSL expiry, issuer, CAA and SANs
Check if a website is up or down
Find a website's IPv4 and IPv6 addresses
Check email syntax, MX records and typos
Shorten a URL and get a QR code
Expand short URLs and check them first
Preview a site on phone, tablet and laptop sizes
Compare two web pages or texts line by line
Check if a DNS change has reached 13 resolvers
Check a domain's MX records and email provider
Validate SPF and count DNS lookups
Check DMARC, find DKIM keys, build a record
Generate strong passwords, passphrases and PINs
QR codes for links, WiFi, vCard, UPI and more
Bulk QR codes from a list, CSV or Excel
Barcodes in 22 formats, one or in bulk
Contact QR codes as vCard or MeCard
WiFi QR codes with printable guest cards
Suggest hashtags from topic words
Random names and test identities
Generate username ideas
Generate test addresses for 18 countries
Make a UPI payment QR code and standee
wa.me chat link and WhatsApp QR code
Pick random numbers in any range
Download YouTube thumbnails in HD
Find a channel's UC ID
Build YouTube iframe embed code
YouTube banner size and safe area
Extract a YouTube video ID
Estimate YouTube ad earnings
See the hidden tags on any YouTube video
Links that start a video at any moment
Resize photos for Instagram
Resize images for Facebook
Resize images for X (Twitter)
Resize images for LinkedIn
Resize images into Pinterest pins
Resize profile pictures for every platform
Make 1200x630 OG images with text
Split a photo into Instagram grid tiles
Compress many images at once
Resize many images with per-photo crops
Convert formats in batch
Open many URLs at once
Watermark many images at once
Rename many files