ToolKitSphereFree Online Tools for Everyday Tasks
ToolKitSphere brings useful PDF, developer, SEO, conversion, image, text and productivity tools together in one simple place.
No signupFree foreverRuns in your browserFast & private
Lightning Fast
Every tool runs instantly — no page reloads, no waiting.
Privacy First
Processing happens locally in your browser whenever possible.
Free Forever
No paywalls, no premium tier, no credit card required.
Mobile Friendly
Every tool works just as well on your phone as your desktop.
Instant Results
See output update as you type — no submit button needed.
No Signup
Open a tool and start using it. No account, ever.
313+
Tools
100%
Free
9
Categories
Friendly
Privacy
Featured tools
Hand-picked tools our users reach for the most.
Base64 Encoder / Decoder
Encode text to Base64 or decode it back — instantly, in your browser.
abc123 → YWJjMTIz
JSON Formatter & Beautifier
Paste messy JSON, get clean, validated, indented output.
{"a":1} → { "a": 1 }
UUID Generator (v1, v4, v5, NIL)
Generate unique IDs (v1, v4, v5) for databases, APIs, and tests.
generate → 3f2504e0-4f89-11d3-9a0c-0305e82c3301
Strong Random Password Generator
Create strong, random passwords with the rules you set.
Regex Tester & Matcher
Test regular expressions live and see exactly what matches.
\d+ → matches: 42, 7
QR Code Generator
Turn any link or text into a downloadable QR code.
Contrast Ratio Checker (WCAG AA/AAA)
Check if your color pairing passes WCAG AA/AAA contrast.
#3b82f6 on #fff → 4.5:1 — AA pass
SEO Meta Tag Generator
Generate SEO and social meta tags for any page in seconds.
title, description → <meta …> tags
Browse by category
Jump straight to the kind of tool you need.
Text & String Utilities
43Encode, format, analyze, and manipulate text and strings.
JSON & Format Converters
61Convert, validate, and beautify JSON, CSV, XML, YAML, HTML, CSS, JS, and SQL.
Cryptography & Encoding
25Generate hashes, secure passwords, UUIDs, JWTs, checksums, and encryption.
Color Tools
35Convert color spaces, create harmonious palettes, test contrast, and simulate color blindness.
Developer Utilities
30URL parser, regex tester, timestamps, cron validator, IP subnet calculator, and dev helpers.
Image Tools
16Generate QR codes, barcodes, ASCII art, SVG placeholders, and convert image formats.
Calculators & Converters
25Multi-category unit converter, loan amortization, percentages, BMI, GPA, and math calculators.
SEO & Metadata Tools
20Generate and analyze meta tags, OpenGraph, Schema.org JSON-LD, sitemaps, robots.txt, and keyword density.
PDF Tools
54Merge PDF documents entirely in your browser — no upload, no watermark.
Popular collections
Curated sets of tools that are often used together.
Developer Essentials
The tools that live in every developer's bookmarks bar.
Text Editing Toolkit
Clean up, compare, and reshape text without leaving the browser.
Image & Visual Tools
Generate, compress, and convert images and visual assets.
Data Converters
Move data between JSON, CSV, XML, and YAML in one click.
Recently added
The newest tools on the platform.
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