Local processing
Your selected files are handled on your own device for supported tools. Kaazo does not need to upload those files to a remote conversion server.
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172 Free Online Tools for PDF, Images, SEO, Text & More
Use 172 practical browser tools for PDF, images, Office files, OCR, SEO, local SEO, QR codes, text, developer data and everyday calculations. No account is required, and supported file processing runs in your browser.
PDF toolsOrganise, edit, convert and optimise PDFsImage toolsConvert, resize, compress and edit imagesText toolsCount, clean, compare and transform textDeveloper toolsJSON, XML, CSV, Base64, regex and code utilitiesCalculatorsPercentages, GST, dates and compound interestSecurity utilitiesPasswords, UUIDs and SHA-256 hashesOffice toolsWork with Word, Excel, CSV and PDFOCR toolsExtract searchable text from scans and imagesSEO toolsMetadata, schema, sitemap and search-preview utilitiesLocal SEOUTM, reviews, coordinates, NAP and local schemaQR & barcodeCreate and inspect QR codes and barcodes
All tools
Choose a tool. Your document is processed locally.
Merge PDF
Combine multiple PDFs in your chosen order.
Split PDF
Separate pages into individual or grouped files.
Organise PDF
Reorder, rotate or remove pages visually.
Rotate PDF
Rotate selected pages by 90, 180 or 270°.
Remove pages
Delete unwanted pages from a PDF.
Extract pages
Save selected pages as a new PDF.
Compress PDF
Reduce file size locally with visual compression.
PDF to JPG
Turn PDF pages into high-quality JPG images.
Images to PDF
Convert common image formats into one PDF.
PDF to text
Extract selectable text into a plain text file.
Add watermark
Place custom text over selected PDF pages.
Page numbers
Add clean, configurable numbering to pages.
Sign PDF
Draw a signature and place it on your document.
Any Image Converter
Batch-convert common image formats to JPG, PNG, WebP or BMP.
Resize images
Resize one or many images to exact or maximum dimensions.
Compress images
Reduce JPG or WebP file sizes with local quality controls.
Crop image
Crop an image precisely without uploading it.
Rotate & flip image
Correct image orientation or create a mirror copy.
Image watermark
Add a configurable text watermark to an image.
Favicon generator
Create ICO, browser and app icons from one image.
Image contact sheet
Arrange multiple images on printable PDF pages.
Grayscale images
Convert images to clean black-and-white tones.
Flatten PDF
Make forms and layered content non-editable.
PDF to grayscale
Convert every page to grayscale locally.
PDF to PNG
Export selected PDF pages as lossless PNG files.
PDF to WebP
Export selected pages as compact WebP images.
Reverse PDF pages
Reverse the complete page order instantly.
Duplicate pages
Duplicate selected PDF pages one or more times.
Insert blank pages
Add blank A4 pages at a chosen position.
Crop PDF pages
Trim margins from selected PDF pages.
Resize PDF pages
Fit pages to A4, Letter or Legal size.
Edit PDF metadata
Change title, author, subject and keywords.
Remove PDF metadata
Strip identifying document information.
PDF information
Create a local report about a PDF document.
Header & footer
Add custom header and footer text to pages.
Bates numbering
Add legal or business document identifiers.
Alternate merge
Interleave odd and even scan documents.
Permanent redaction
Permanently remove a rectangular page area.
Fill & flatten forms
Complete PDF form fields and optionally flatten them.
Repair PDF
Rebuild readable PDFs and normalise their structure.
PDF to Word
Create an editable or exact-layout DOCX file.
Word to PDF
Convert DOCX text, tables and images into PDF.
PDF to PowerPoint
Turn each PDF page into an exact-layout slide.
Text to PDF
Create a clean PDF from a plain text file.
Markdown to PDF
Convert headings, lists and text into PDF.
CSV to PDF
Turn CSV data into printable table pages.
Excel to PDF
Convert standard XLSX worksheets to PDF tables.
Excel to CSV
Export every XLSX worksheet into a CSV ZIP.
CSV ↔ JSON
Convert CSV and JSON data in either direction.
Image OCR
Extract English text from images directly in your browser.
PDF OCR to text
Extract English text from scanned PDF pages.
Make PDF searchable
Add an invisible English OCR text layer.
Word Counter
Count words, characters, sentences and paragraphs instantly.
Character Counter
Count characters with and without spaces in real time.
Sentence Counter
Count sentences and analyse average sentence length.
Paragraph Counter
Count paragraphs and lines in pasted text.
Reading Time Calculator
Estimate reading and speaking time from your text.
Case Converter
Convert text to uppercase, lowercase, title case and more.
Remove Duplicate Lines
Remove repeated lines while keeping the original order.
Sort Lines
Sort text lines alphabetically or in reverse order.
Reverse Text
Reverse characters, words or lines in text.
Remove Extra Spaces
Clean repeated spaces and unnecessary blank whitespace.
Remove Line Breaks
Turn broken lines into clean paragraphs or one continuous line.
Add Line Numbers
Prefix every line with configurable line numbers.
Find and Replace Text
Find and replace words or phrases directly in your browser.
Text Difference Checker
Compare two texts line by line and highlight changes.
Slug Generator
Create clean SEO-friendly URL slugs from text.
Lorem Ipsum Generator
Generate placeholder paragraphs for layouts and prototypes.
JSON Formatter
Pretty-print JSON with readable indentation.
JSON Validator
Validate JSON syntax and report parsing errors.
JSON Minifier
Remove unnecessary whitespace from valid JSON.
JSON to CSV
Convert an array of JSON objects into CSV locally.
CSV Cleaner
Trim cells, remove blank rows and normalise CSV data.
CSV Duplicate Remover
Remove duplicate CSV rows based on all columns or one column.
XML Formatter
Format XML with readable indentation.
XML Minifier
Remove unnecessary whitespace between XML tags.
XML to JSON
Convert XML elements and attributes into JSON.
HTML Formatter
Pretty-print HTML markup with readable indentation.
HTML Minifier
Remove comments and unnecessary whitespace from HTML.
CSS Minifier
Compress CSS by removing comments and extra whitespace.
JavaScript Minifier
Conservatively reduce JavaScript whitespace and comments.
Base64 Encoder
Encode UTF-8 text into Base64.
Base64 Decoder
Decode Base64 text back into UTF-8.
URL Encoder
Percent-encode text for use in URL components.
URL Decoder
Decode percent-encoded URL text.
HTML Entity Encoder
Escape text for safe display as HTML text.
HTML Entity Decoder
Convert HTML entities back into normal text.
Regex Tester
Test JavaScript regular expressions against sample text.
UUID Generator
Generate cryptographically strong UUID v4 identifiers.
Password Generator
Generate strong random passwords with configurable character sets.
SHA-256 Hash Generator
Create a SHA-256 hash from text locally.
Unix Timestamp Converter
Convert Unix timestamps to readable local and UTC dates.
Percentage Calculator
Calculate a percentage of any number.
Percentage Change Calculator
Calculate percentage increase or decrease between two values.
Discount Calculator
Calculate sale price and savings from a discount.
Profit Margin Calculator
Calculate gross profit and margin from revenue and cost.
GST Calculator
Add or extract GST from an amount using any rate.
Age Calculator
Calculate age from a date of birth to any target date.
Date Difference Calculator
Calculate the number of days and weeks between two dates.
Compound Interest Calculator
Estimate investment growth with compound interest.
Geotag Image
Add GPS latitude, longitude and optional altitude metadata to a JPEG photo.
Batch Geotag Images
Apply the same GPS coordinates to multiple JPEG photos in one browser session.
Remove Image Location
Remove GPS and other embedded metadata by exporting a clean image copy.
EXIF Viewer
Inspect common JPEG EXIF fields including GPS coordinates, date and camera metadata.
EXIF Editor
Write selected EXIF fields such as GPS, date, artist and description into JPEG images.
Copy EXIF Metadata
Copy the EXIF metadata block from one JPEG image to another JPEG.
Strip Image Metadata
Remove EXIF and other metadata by re-encoding an image as a clean JPEG or PNG.
Change Photo Date Metadata
Set a JPEG EXIF date/time value without changing the visible photograph.
GPS Coordinates Extractor
Extract latitude, longitude and altitude from JPEG EXIF metadata when available.
Image DPI Changer
Set JPEG JFIF density metadata to a chosen DPI value.
DPI Calculator
Calculate image DPI from pixel dimensions and intended print size.
Passport Photo Maker
Crop and resize a photo to custom passport-style dimensions and DPI.
Social Media Image Resizer
Resize images to common square, portrait, story and social-post dimensions.
Thumbnail Maker
Resize and crop an image into a custom thumbnail canvas.
Photo Collage Maker
Combine multiple images into a simple grid collage in the browser.
Add Border to Image
Add a custom-width solid colour border around an image.
Rounded Corners Image
Create a PNG with rounded image corners and transparent outer pixels.
Pixelate Image
Apply a block-style pixelation effect with adjustable pixel size.
Image Color Picker
Click an uploaded image to identify pixel RGB and HEX colours.
QR Code Generator
Generate a downloadable QR code from text or a URL.
Wi-Fi QR Code Generator
Create a QR code that encodes Wi-Fi network name, password and security type.
URL QR Code Generator
Turn a website URL into a downloadable QR code.
vCard QR Code Generator
Create a contact QR code with name, phone, email and organisation fields.
Email QR Code Generator
Generate a QR code that opens a pre-addressed email draft.
SMS QR Code Generator
Create a QR code that opens a pre-addressed SMS message.
QR Code Reader
Scan a QR code from an uploaded image using supported browser barcode APIs.
Barcode Generator
Generate common CODE128 barcodes as downloadable SVG graphics.
UTM Builder
Build campaign URLs with properly encoded UTM tracking parameters.
Google Review Link Generator
Create a Google review URL from a Google Place ID.
Google Maps Coordinate Extractor
Extract latitude and longitude from common Google Maps URL formats or coordinate text.
Local Business Schema Generator
Generate LocalBusiness JSON-LD markup from business details.
NAP Formatter
Format business name, address and phone details into a consistent citation-ready block.
GBP Post Character Counter
Count characters, words and links in Google Business Profile post copy.
Meta Title Checker
Measure a proposed SEO title and preview its length.
Meta Description Checker
Measure meta-description length and preview the snippet text.
SERP Snippet Preview
Preview a simple desktop-style search result using title, URL and description inputs.
Robots.txt Generator
Create a basic robots.txt file with allow/disallow directives and sitemap location.
XML Sitemap Generator
Turn a list of URLs into a basic XML sitemap.
Schema Markup Generator
Generate basic WebSite, Organization, Article or FAQ JSON-LD templates.
Canonical Tag Generator
Generate a canonical link tag from an absolute preferred URL.
Open Graph Meta Generator
Generate Open Graph and Twitter meta tags for a page.
Keyword Density Checker
Analyse word and phrase frequency in pasted text.
Duplicate Word Finder
Find repeated words and show their occurrence counts.
Remove HTML Tags
Convert HTML markup into readable plain text.
Text to Slug Converter
Convert one or multiple text lines into lowercase hyphenated URL slugs.
CSV Column Extractor
Extract one CSV column by header name or column number.
List Deduplicator
Remove duplicate list items while preserving first-seen order.
Random Picker
Choose one or more random items from a list using browser cryptographic randomness.
JWT Decoder
Decode JWT header and payload sections without verifying the signature.
SQL Formatter
Format common SQL statements with line breaks and indentation for easier reading.
HEX RGB HSL Color Converter
Convert colours between HEX, RGB and HSL formats.
Cron Expression Helper
Build common five-field cron expressions from simple scheduling options.
JSON Diff
Compare two JSON values and list changed paths.
CSV Sorter
Sort CSV rows by a selected column while keeping the header row.
CSV Filter
Filter CSV rows that contain a value in a selected column.
JSON Path Finder
Search JSON keys and values and return matching dot-style property paths.
VAT Calculator
Add or extract VAT at a custom percentage rate.
Markup Calculator
Calculate selling price and gross margin from cost and markup percentage.
Break-even Calculator
Calculate break-even units and revenue from fixed cost, price and variable cost.
ROAS Calculator
Calculate return on ad spend from advertising cost and attributed revenue.
CPC Calculator
Calculate average cost per click from spend and clicks.
CPM Calculator
Calculate cost per thousand impressions from spend and impressions.
CTR Calculator
Calculate click-through rate from clicks and impressions.
Conversion Rate Calculator
Calculate conversion rate from conversions and visits, clicks or leads.
Loan EMI Calculator
Estimate monthly loan payments from principal, annual rate and term.
SIP Calculator
Estimate the future value of regular monthly investments at an assumed return.
CAGR Calculator
Calculate compound annual growth rate from beginning value, ending value and years.
Simple Interest Calculator
Calculate simple interest from principal, annual rate and time.
ROI Calculator
Calculate return on investment from gain/value received and total cost.
Customer Acquisition Cost Calculator
Calculate CAC from acquisition spend and new customers.
Lead Conversion Calculator
Calculate lead-to-customer conversion rate and cost per converted customer.
Text Generator
Generate bold, italic, cursive, gothic, monospace, bubble, small caps and other copyable text styles in one place.
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Private document tools that run in your browser
Kaazo Tools helps you organise, convert, optimise and edit everyday documents without sending files to a processing server. Supported tasks run locally in your browser, making the suite useful for invoices, reports, presentations, forms, images and other day-to-day files.
One practical toolbox
Work with PDF, Office documents, OCR and common image formats from the same interface instead of switching between multiple utility websites.
No account required
Open a tool, choose your file, adjust the available options and process it. Core browser tools do not require an account or sign-in.
How Kaazo Tools works
Choose the task you need, select the document or image from your device, review the available settings and process the result. After the page loads online, supported operations run directly in your browser without uploading your document contents to a Kaazo processing server.
Are my files uploaded?
For the tools marked as local processing, the document is processed in your browser. The website does not need to upload the selected file to a Kaazo conversion server.
Do I need to create an account?
No. The current browser-based tools can be used without creating a Kaazo account.
Which files can I work with?
The suite includes PDF organisation and editing, PDF and image conversion, common image utilities, selected Office document conversions and browser-based OCR tools. Each tool shows the accepted file type before you choose a file.
Why can results differ from desktop software?
Complex documents can contain fonts, forms, layers, layouts or features that browsers interpret differently. Keep a copy of the original file and review important output before relying on it.
Popular Kaazo Tools workflows
Start with the task you need and move between related utilities without returning to a generic converter. These common workflows link directly to dedicated tool pages.
Merge PDF filesCombine reports, invoices or scanned sections into one PDF.Compress a PDFReduce the size of image-heavy PDF documents locally.Convert PDF to WordCreate an editable DOCX from supported PDF content.Convert imagesBatch-convert common images to JPG, PNG, WebP or BMP.Format JSONPretty-print compact JSON for easier debugging and review.Calculate GSTAdd or extract GST from an amount using your chosen rate.