Free Online Tools That Run on Your Device
Open the page and start working — every tool runs right in your browser. Your files never leave your device.
Popular Tools
Popular picks for everyday tasks. Tap ★ to pin your own.
All Tools
Word Counter
Count words, characters, sentences and lines in your text with reading time and keyword density — free and instant.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase and snake_case instantly.
Slug Generator
Turn any title or heading into a clean, SEO-friendly URL slug. Supports multiple separators and lowercase output.
JSON Formatter
Format, validate and minify JSON with syntax error highlighting. Free online tool for developers.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text instantly in your browser. Supports UTF-8.
URL Encode / Decode
Encode text for safe use in URLs or decode URL-encoded strings back to readable text.
UUID Generator
Generate RFC-4122 version 4 UUIDs in bulk. Create one or thousands of unique identifiers instantly.
Regex Tester
Test regular expressions against any text with live match highlighting and capture groups.
JWT Decoder
Decode JSON Web Tokens (JWT) and inspect the header and payload. No verification, fully client-side.
Meta Tag Generator
Generate Open Graph, Twitter Card and canonical meta tags for your page with a live HTML preview.
Robots.txt Generator
Create a robots.txt file to control crawler access and point to your sitemap.
Sitemap Generator
Turn a list of URLs into a standards-compliant XML sitemap for search engines.
DNS Lookup
Query DNS records (A, AAAA, MX, TXT, CNAME, NS) for any domain using a public resolver.
Google SERP Preview
Preview how your page title and meta description will look in Google search results, with pixel-width truncation warnings.
Schema Markup Generator
Generate valid JSON-LD structured data (Article, FAQ, Product, Organization and more) for rich results in Google.
Image Compressor
Batch-compress images in your browser. Original/JPG/WebP output, high-ratio PNG via color quantization or lossless oxipng, live size estimate, folder upload and ZIP download.
Image Resizer & Cropper
Resize and crop images in your browser. Social presets, fill/crop, fit-with-border and blur background, multi-file batch, and multi-size export with per-size crop.
Image Background Remover
Remove image backgrounds in your browser. Auto-detects solid vs complex backgrounds, batch-processes files and folders, and downloads a ZIP named <original>_nobg.png.
Watermark & Text on Image
Add text or a logo watermark to your photos in the browser. Opacity, 9-grid positioning, tiled watermarks and batch processing with ZIP export.
Collage & Before-After Maker
Create photo collages and before/after comparison images in your browser. 2/3/4/9 grid layouts, split view, spacing, rounded corners, background color and aspect presets.
Blur, Pixelate & Redact Image
Hide sensitive parts of an image in your browser. Draw rectangles or brush over faces, plates, addresses and IDs with blur, pixelate or solid redaction.
Image Filter & Adjust
Adjust brightness, contrast, grayscale, sepia and more.
Image Upscaler & Enhancer
Upscale and enhance images in your browser. 2x/4x enlargement with high-quality resampling, sharpening, noise reduction and contrast boost.
Image Converter
Convert images between JPG, PNG and WebP formats right in your browser. Fast and private.
Discover
Handy tools you might not have found yet.
What do you want to do?
Free online tools that respect your privacy
ToolHub brings together PDF, image, video and audio tools, finance and health calculators, developer and SEO utilities, text tools and document converters — all running instantly in your browser.
Free forever
Every tool on ToolHub is completely free to use. No account, no signup, no subscriptions and no hidden limits — open a tool and get the job done in seconds.
Private by design
All processing happens locally in your browser. Your files, audio, video, images and text never leave your device, so nothing is uploaded, stored or shared.
Works offline
Because tools run entirely on your device, many of them keep working even without an internet connection. Fast, dependable and available wherever you are.
Frequently asked questions
Are ToolHub tools really free?▾
Yes. Every tool on ToolHub is free to use, with no account or signup required.
Is my data uploaded to a server?▾
No. All tools run entirely in your browser. Your files, audio, video and text never leave your device, which keeps them private and lets tools work offline.
What kinds of tools are available?▾
ToolHub covers PDF, image, video and audio editing, unit and finance calculators, developer and SEO utilities, text tools and document converters.
Do I need to install anything?▾
No. ToolHub works in any modern web browser — just open a tool and start.
Are there any usage limits or watermarks?▾
No. There are no daily limits, no file-size throttling for typical use, and no watermarks added to your output. Use the tools as often as you like.
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