Free tools for everyday work
Format JSON, generate secure passwords, count text, calculate percentages, resize images, prepare PDFs, and discover 204+ free tools in one place.
204+
free tools
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Why use 100 Free Online Tools
Find focused utilities for developer tasks, writing, images, PDFs, SEO, design, dates, security, and everyday calculations.
Open a tool, paste your input, and get a clean result without extra steps.
Many everyday utilities process your input directly in the browser.
Use the core tools instantly, whether you need one quick result or a full workflow.
Tool guides explain common use cases, safe habits, and related next steps.
Popular workflows
The catalog is organized around real daily tasks so users can move from intent to output quickly.
Clean an API response
Format, validate, sort, and convert JSON for cleaner debugging and sharing.
Prepare web images
Resize, compress, convert PNG/JPG/WebP, and create exact assets for publishing.
Handle PDF tasks
Merge, split, compress, inspect, and convert documents with practical PDF tools.
Launch an SEO page
Generate metadata, canonical tags, robots rules, hreflang tags, and structured data.
Create secure values
Generate passwords, passphrases, UUIDs, API keys, hashes, and temporary codes.
Polish publishing copy
Count, clean, reverse, compare, and structure text before it reaches your CMS.
Popular tools
Practical tools for developers, writers, creators, marketers, designers, and everyday web users.
Format, beautify, and minify JSON in your browser.
Validate JSON syntax and get clear parsing feedback instantly.
Encode text as Base64 without sending data to a server.
Decode Base64 strings back into readable text.
Count words, characters, sentences, and reading time.
Measure characters, spaces, lines, and UTF-8 byte size.
Calculate percentages, ratios, and percentage change.
Calculate exact age in years, months, and days.
Categories
Jump straight into the type of task you need: code, text, images, PDFs, SEO, design, security, dates, or calculators.
Format, validate, convert, and inspect code or structured data.
21 tools, 21 Available
<>Transform URLs, text, tokens, tables, and common data formats.
21 tools, 21 Available
AaCount, clean, convert, compare, and shape written content.
26 tools, 26 Available
%Simple calculators for percentages, age, money, units, and planning.
27 tools, 27 Available
#Generate secure values and inspect privacy-sensitive strings.
12 tools, 12 Available
pxPrepare images for websites, products, documents, and social media.
16 tools, 16 Available
SEOPlan metadata, previews, campaigns, and search-friendly pages.
25 tools, 25 Available
UICreate palettes, spacing, contrast, CSS values, and UI helpers.
23 tools, 23 Available
24Compare dates, convert timestamps, and plan across time zones.
12 tools, 12 Available
PDFConvert images to PDF, inspect PDF files, and prepare document assets.
21 tools, 21 Available
Recently added
Merge multiple CSV files into one combined output.
Split CSV text into smaller downloadable parts.
Create a new PDF with pages in a custom order.
Add a text watermark to every PDF page.
Add simple page numbers to every PDF page.
Rotate every page in a PDF and download the updated file.
Most used
Format, beautify, and minify JSON in your browser.
Generate strong passwords with configurable rules.
Count words, characters, sentences, and reading time.
Measure characters, spaces, lines, and UTF-8 byte size.
Generate secure random UUID v4 identifiers.
Validate JSON syntax and get clear parsing feedback instantly.
Blog
Read practical guides for JSON, images, PDFs, SEO, security, design, writing, and everyday productivity.
Productivity · 4 min
A practical guide to using focused web tools for text, code, images, PDFs, and calculations.
Images · 5 min
A practical guide to resizing, compressing, converting, cropping, and preparing image assets for the web.
Documents · 5 min
When to merge, split, compress, inspect, convert, and prepare PDFs without opening heavy software.
Security · 4 min
What makes generated passwords safer and how to review them before use.
Developer · 4 min
How to make JSON readable, catch syntax errors, and prepare cleaner API payloads.
SEO · 4 min
How source, medium, campaign, term, and content parameters help marketing measurement.
Design · 4 min
Why contrast ratio matters and how designers can test text and background choices quickly.
Productivity · 4 min
How workday counting helps project planning, invoices, hiring, and support deadlines.
Developer · 6 min
Developer tools focus on fast formatting, validation, inspection, and conversion tasks that happen many times during API, frontend, backend, and documentation work.
