All free online tools

Beautify, validate and minify JSON instantly.

Convert JSON to CSV instantly.

Convert CSV to JSON instantly.

Convert JSON to XML instantly.

Convert XML to JSON instantly.

Convert JSON to YAML instantly.

Convert YAML to JSON instantly.

Validate JSON and catch errors instantly.

Minify JSON to the smallest size.

Pretty, readable view of any JSON.

Find added, removed and changed keys between two JSON objects.

Escape raw text into a JSON-safe string.

Decode a JSON string back to raw text.

Count words, characters, sentences and reading time.

Convert text to UPPERCASE, lowercase, Title Case and more.

Test and debug regular expressions with live highlighting.

Count characters, words, lines and more.

Compare two texts and highlight the differences.

Delete duplicate lines from any text.

Find and replace text, with regex support.

Count sentences, words and characters live.

Count paragraphs, lines and words instantly.

Estimate reading and speaking time for any text.

Reverse the characters of any text.

Reverse the order of words in your text.

Flip the order of lines in any list.

Delete blank lines from any text.

Sort lines A–Z or Z–A, with numeric mode.

Randomly shuffle the order of lines.

Collapse multiple spaces into one.

Strip extra spaces, breaks, tabs and junk characters.

Add a number to the start of every line.

Encode text to Base64 or decode it back — instantly.

Percent-encode and decode URLs and query strings.

Convert text to binary and back.

Convert text to Unicode code points and back.

Convert text to ASCII decimal codes and back.

Convert text to hexadecimal and back.

Convert text to octal and back.

Apply the ROT13 letter cipher, live.

Translate text to Morse code and back.

Encode and decode Base32 (RFC 4648).

Check how strong a password is.

Generate SHA-256, SHA-1, SHA-384 and SHA-512 hashes.

Generate MD5 hashes instantly.

Generate a SHA-1 digest of any text, live.

Generate a SHA-512 digest of any text, live.

Compute a CRC32 checksum of any text.

Generate an HMAC signature with a secret key.

Get the SHA-256 hash of any file.

Convert HEX colors to RGB and HSL instantly.

Convert RGB colors to HEX.

Check color contrast for WCAG accessibility.

Convert HEX colors to HSL instantly.

Convert HSL colors to HEX and RGB.

Convert RGB colors to CMYK for print.

Convert CMYK colors to RGB and HEX.

Generate tints and shades from one color.

Mix two colors at any ratio.

Build harmonious color palettes from one base color.

Generate random colors with HEX, RGB and HSL values.

Search all 140 CSS named colors with hex values.

See how an image looks with eight types of color blindness.

Decode JWT header and payload.

Write Markdown and preview the HTML live.

Generate random GUIDs / UUIDs in bulk.

Search HTTP status codes and their meanings.

Look up MIME types by file extension.

Build cron expressions with a plain-English preview.

Parse a user-agent string into browser, OS and device.

Format and indent minified JavaScript.

Strip comments and whitespace from JavaScript.

Ready-made regex patterns with explanations.

Build and sign an HS256 JSON Web Token.

Inspect the raw HTTP response headers of any URL.

Generate CSS gradients visually.

Design CSS box shadows visually.

Round corners visually and copy the CSS.

Build flex layouts visually and copy the CSS.

Design CSS grids visually and copy the CSS.

Rotate, scale, translate and skew visually.

Blur, brighten and tint with CSS filters.

Create frosted-glass cards with CSS.

Design soft-UI shadows with CSS.

Fluid, responsive sizing with clamp().

Make CSS triangles with the border trick.

Design text shadows visually and copy the CSS.

Generate keyframe animations with a live preview.

Craft custom easing curves for CSS.

Format and indent messy or minified CSS.

Minify CSS and see how many bytes you save.

Generate SEO, Open Graph and Twitter meta tags.

Turn any text into a clean URL slug.

Analyze 1-, 2- and 3-word keyword frequency and density.

Check meta description length with a live Google preview.

Check title tag length with a live SERP preview.

Extract and audit the SEO tags in a page's <head>.

Build a valid robots.txt from simple options.

Check whether a URL is allowed or blocked by robots.txt.

Turn a list of URLs into a valid XML sitemap.

Turn URLs into a linked HTML sitemap list.

Generate a clean rel=canonical link tag.

Generate hreflang tags for multilingual pages.

Generate Open Graph tags with a live preview card.

Generate Twitter Card tags with a live preview.

Validate JSON-LD structured data and catch issues.

Generate schema.org JSON-LD for any common type.

Build FAQPage JSON-LD from question and answer pairs.

Create Organization JSON-LD with logo and social profiles.

Generate Article JSON-LD with author and dates.

Build Product JSON-LD with price, availability and rating.

Generate Event JSON-LD with dates and location.

Create BreadcrumbList JSON-LD from ordered levels.

Build LocalBusiness JSON-LD with address, hours and geo.

Generate Review JSON-LD with rating and author.

Build VideoObject JSON-LD with thumbnail and duration.

Trace the full redirect chain of any URL.

Validate an XML sitemap or sitemap index.

Convert JPG images to PNG.

Convert PNG images to JPG.

Convert PNG images to WebP.

Convert WebP images to PNG.

Convert JPG images to WebP.

Convert WebP images to JPG.

Resize images to exact pixel dimensions.

Crop images to a precise region.

Rotate images 90, 180 or 270 degrees.

Mirror images horizontally or vertically.

Shrink image file size with a quality slider.

Clean and minify SVG code to shrink it.

Paste SVG code and preview it live.

Inspect an image's name, type, size and dimensions.

Pull a palette of dominant colors from an image.

Create 16, 32, 48 and 180px favicons from an image.

Add a solid colored border around an image.

Convert an image to a Base64 data URI.

Turn any image black and white.

Split an image into a grid of equal tiles.

Combine multiple images into one — row, column or grid.

Combine multiple PDFs into one — privately.

Pull a page range out into a new PDF.

Rotate every page 90, 180 or 270 degrees.

Remove specific pages from a PDF.

Keep only the pages you choose.

Stamp page numbers onto every page.

Combine JPG and PNG images into one PDF.

Inspect a PDF's title, author and dates.

Add a diagonal text watermark to every page.

Rearrange pages with up and down arrows.

Trim even margins off every page.

Turn every PDF page into a PNG or JPG.

Shrink a PDF's file size, losslessly.

Add a password to a PDF, right in your browser.

Remove a known password from a PDF.

Find your exact age in years, months and days.

Count the days, weeks, months and years between two dates.

Count working days between two dates, weekends excluded.

Check if any year is a leap year, with the rule explained.

Convert Unix timestamps to dates and back, live.

Format a date as ISO, US, EU, long or RFC style.

Work out the duration between two clock times.

Count down the days and weeks to any future date.

Add or subtract days from any date instantly.

Hours and minutes between two times, even overnight.

Find the ISO-8601 week number for any date.

A simple countdown timer with start, pause and reset.

Work out percentages, shares and percent change.

Add, subtract, multiply and divide fractions.

Find the greatest common divisor of any numbers.

Find the least common multiple of any numbers.

Check if a number is prime and see its factors.

List every prime number up to a limit.

Convert numbers to Roman numerals and back.

Spell any number out in English words.

Mean, median, mode and more from a list.

Simplify ratios and solve for a missing value.

Compute N! exactly, even for large N.

Convert between decimals and scientific notation.

A full scientific calculator in your browser.

Work out the monthly EMI on any loan.

Estimate monthly repayments and total interest on a loan.

Calculate your monthly mortgage payment and total interest.

See how savings grow with compound interest.

Calculate simple interest and the total amount.

Find profit, margin and markup from cost and price.

Work out a sale price and how much you save.

Add or remove VAT from any amount.

Add or remove GST, with CGST/SGST split.

Find the units needed to cover your costs.

Split the bill and the tip between friends.

See how long it takes to reach a savings goal.

Estimate the maturity value of a monthly SIP.

Project your Public Provident Fund maturity value.

Calculate fixed deposit maturity and interest.

Work out recurring deposit maturity and interest.

Estimate your gratuity payout under the Payment of Gratuity Act.

Work out how much of your House Rent Allowance is tax-exempt.

Calculate the Zakat due on your wealth at 2.5%.

Convert a number to words using lakh and crore.

See if refinancing your mortgage saves money and when it pays off.

Estimate your car payment with trade-in, down payment and sales tax.

Find your payment, payoff time and how extra payments save interest.

Project your 401(k) balance at retirement with the employer match.

Project your tax-free Roth IRA balance at retirement.

Format and indent messy HTML.

Minify HTML to shrink page size.

Encode text to safe HTML entities.

Decode HTML entities back to text.

Convert HTML to clean Markdown.

Generate HTML table code with a live preview.

Turn plain lines into clean ordered or unordered HTML lists.

Convert Markdown to clean HTML with a live preview.

Calculate subnet details from an IP and CIDR.

Convert CIDR notation to an IP range and netmask.

Generate random MAC addresses in any format.

Search common TCP/UDP ports and their services.

Work out network, broadcast and host range from an IP.

Convert IPv4 between decimal, integer, binary and hex.

Expand or compress any IPv6 address.

Produce correctly formatted DNS zone records.

Convert between subnet and wildcard masks.

Find the PTR hostname for any IP address.

Beautify and indent XML with proper structure.

Check whether XML is well-formed and find errors.

Strip whitespace and comments to shrink XML.

Diff two XML documents line by line.

Run XPath queries against XML and see matches.

Convert a flat list of XML records to CSV.

Beautify SQL queries for MySQL, PostgreSQL and more.

Collapse a SQL query into a single line.

Lightweight sanity check for SQL queries.

Turn file permissions into octal and symbolic notation.

Build a clean Dockerfile from a simple form.

Generate a docker-compose.yml from a form.

Create an Nginx server block in seconds.

Generate .htaccess rules with simple toggles.

Build a .gitignore from your tech stacks.

Create a tidy ~/.ssh/config Host block.

Generate an Ed25519 or RSA SSH key pair in your browser.

Focus in work sprints with automatic breaks.

Precise stopwatch with laps and centisecond timing.

Pick random items from any list you paste.

Spin an animated wheel to make a choice.

Build a checklist and copy it as Markdown.

Roll any number of dice with any number of sides.

Create strong, random, secure passwords.

Turn any text or URL into a downloadable QR code.

Generate random v4 UUIDs on demand.

Placeholder text in paragraphs, sentences or words.

Create unique, memorable usernames instantly.

Brainstorm brandable business names from a keyword.

Generate domain ideas across popular TLDs.

Generate realistic random first and last names.

Generate fake email addresses for testing.

Generate fake US addresses for testing.

Pick random emoji from a curated set.

Get a random inspirational quote instantly.

Generate secure random numeric PINs.

Create memorable, secure word-based passphrases.

Generate random strings with custom character sets.

Generate compact, URL-safe unique IDs.

Generate random numbers in any range.

Create CODE128, EAN-13, UPC and CODE39 barcodes.

Generate realistic mock data as JSON, CSV or SQL.

Scan any QR code with your camera or an image.

Read 1D and 2D barcodes from your camera or a photo.

Shrink any video to fit an upload limit — without uploading it.