You might use PasteRheo every day to manage your clipboard history, but did you know it has powerful hidden features that could transform how you work? Today, we're revealing 5 easily overlooked features that deserve your attention.

1. Automatic Math Calculator

Copy a math expression, and PasteRheo automatically calculates the result for you.

What It Can Do

When you copy something like this:

sqrt(144) + 2^3

In the preview window, PasteRheo automatically displays the result: 20

Supported Functions

Basic Operations: +, -, *, /, ^ (power)
Math Functions: sqrt(), abs(), pow()
Trigonometry: sin(), cos(), tan()
Logarithms: log(), exp()

Real-World Applications

Quick Calculations: Copy (1920 * 1080) / 1000000, instantly see 2.0736
Unit Conversions: 1024 * 1024 * 1024 to quickly calculate bytes in 1GB
Engineering: sqrt(2) * 100 for diagonal length calculations
Finance: (1500 * 12) + 5000 for annual budget calculations

No need to open a calculator app — just copy the expression and see the result. You can even copy the result with one click.

2. QR Code Recognition in Images

Screenshot contains a QR code? PasteRheo can automatically recognize and extract its content.

How to Use

Screenshot or copy an image containing a QR code
Preview the image in PasteRheo
Click the "Copy QR Code Content" button in the toolbar
The text or link from the QR code is automatically copied to your clipboard

Real-World Scenarios

Meeting Shares: Scan QR code links from presentation slides
Document Processing: Extract QR code info from PDF screenshots
Quick Sharing: Convert QR code content to text for colleagues
Testing & Debugging: Verify generated QR code content is correct

No need to pull out your phone to scan — extract QR code content directly on your computer.

3. Color Harmony Suggestions

Copy a color value, and PasteRheo not only shows the color swatch but also recommends harmonious color schemes.

Color Theory Support

When you copy a color value (like #3B82F6), the preview window shows:

Complementary: Opposite colors on the color wheel, creating strong contrast
Analogous: Adjacent colors on the wheel, harmonious and unified
Triadic: Three equally-spaced colors on the wheel, balanced and vibrant
Split Complementary: A variation of complementary, softer contrast

Designer's Dream

Quick Color Schemes: No need to open design tools, see suggestions instantly
Format Conversion: Switch between HEX, RGB, HSL, OKLCH with one click
Click to Copy: Click any color value or suggestion to copy immediately
Color Exploration: Start from one color, explore entire color schemes

Whether you're a designer or developer, this feature helps you find the perfect color palette quickly.

4. Interactive Regex Testing

Copy a regular expression, and PasteRheo provides a real-time testing environment.

Powerful Testing Features

When previewing a regex, you'll see:

Syntax Highlighting: Regex patterns displayed in color, easy to read
Test Input Box: Paste test strings
Real-Time Matching: Matched parts are highlighted
Capture Groups: Shows all captured group contents
Flag Explanations: Explains what g, i, m flags mean

Developer Essential

/(\d{3})-(\d{3})-(\d{4})/g

Test string: Call me at 123-456-7890 or 987-654-3210

PasteRheo highlights matched phone numbers and shows each capture group (area code, prefix, suffix).

Real Applications

Debug Regex: Quickly verify if your regex works correctly
Learn Regex: Understand regex syntax through real-time feedback
Data Extraction: Test extracting specific patterns from text
Format Validation: Check email, phone, URL validation rules

No need to open regex101 or other online tools — test directly in PasteRheo.

5. Smart Timestamp Parsing

Copy a Unix timestamp, and PasteRheo automatically converts it to human-readable date and time.

Smart Recognition

PasteRheo recognizes:

Second Timestamps: 1706140800 (10 digits)
Millisecond Timestamps: 1706140800000 (13 digits)

Automatically determines the unit — no manual specification needed.

Multiple Format Display

When previewing a timestamp, you'll see:

Local Time: 2024-01-25 08:00:00 (based on your timezone)
ISO Format: 2024-01-25T00:00:00.000Z
UTC Time: Thu, 25 Jan 2024 00:00:00 GMT
Relative Time: 2 days ago / 3 hours from now

Developer Scenarios

API Debugging: Quickly understand what API-returned timestamps mean
Log Analysis: Convert timestamps in logs to readable format
Database Queries: Understand timestamps stored in databases
Expiration Checks: Quickly determine if tokens or sessions are expired

Copy 1706140800, instantly know it's January 25, 2024.

More Hidden Tricks

JWT Token Parsing

Copy a JWT token, and PasteRheo automatically decodes the Header and Payload, showing:

Issued at time (iat)
Expiration time (exp)
Expiration status (expired/valid)
Complete Payload content

Copy Payload JSON with one click for easy debugging.

Automatic Base64 Decoding

Copy Base64-encoded content, and PasteRheo will:

Automatically decode
Determine content type (image/text/binary)
Show size before and after encoding
Display preview if it's an image

IP Address Analysis

Copy an IP address, and PasteRheo identifies:

IPv4 or IPv6
Private addresses (192.168.x.x, 10.x.x.x)
Public addresses
Loopback addresses (127.0.0.1, ::1)

Cron Expression Explanation

Copy a Cron expression, and PasteRheo shows:

Human-readable description: "Every day at 3:00 AM"
Field breakdown (second/minute/hour/day/month/week)
Next execution time prediction

How to Discover More Features

1. Preview Different Content Types

PasteRheo automatically activates features based on content type. Try copying:

Math expressions
Color codes
Timestamps
Regular expressions
JWT tokens
Base64 strings
IP addresses
Cron expressions

Different content types show different tool buttons:

Images: QR code recognition, Copy as Base64
Links: Show QR code, Open in browser
Code: Copy as Markdown
Colors: Format conversion, color harmony suggestions

Right-click any item to explore available actions:

Preview
Edit
Rename
Pin to Group
Adjust Order (for pinned items)
Copy/Paste

4. Review Keyboard Shortcuts

Check all shortcuts in Settings to discover efficient operations:

Cmd+1-9: Quick paste first 9 items
Cmd+[/]: Switch Pin groups
Space: Quick preview
Cmd+E: Quick edit

Real-World Workflow Examples

A Designer's Day

Morning: Copy brand color #3B82F6 from design mockup
View Palette: PasteRheo automatically shows complementary and analogous colors
Copy Scheme: Click suggested colors to quickly build color scheme
Pin & Save: Pin entire color scheme to "Project Colors" group

Developer Debugging

API Response: Copy timestamp 1706140800 from response
Quick View: PasteRheo shows "2024-01-25 08:00:00"
JWT Debug: Copy JWT token, check expiration time
Regex Test: Copy regex, test if it matches expected format

Data Analyst's Work

Calculate Stats: Copy (1500 + 2300 + 1800) / 3, see average
Time Conversion: Convert database timestamps to readable dates
Base64 Decode: Decode Base64 fields in data
Batch Processing: Use Paste Stack to process multiple data items sequentially

Why These Features Are "Hidden"

These features are easily overlooked because they're context-aware — they only activate when you copy specific types of content.

PasteRheo's design philosophy is:

Smart Recognition: Automatically detect content type
Show on Demand: Only display relevant features
Zero Configuration: Works out of the box, no manual setup
Non-Intrusive: Won't distract you with irrelevant features

That's why you might have used PasteRheo for a long time without knowing it can do so much.

Start Exploring

Now that you know these 5 hidden features, try using them in your daily work:

Copy math expressions, see automatic calculation
Screenshot QR codes, try automatic recognition
Copy color values, explore color harmony suggestions
Test regex patterns, see real-time matching
Paste timestamps, convert to readable dates

You'll discover that PasteRheo isn't just a clipboard manager — it's an intelligent content processing hub.

Conclusion

PasteRheo's power lies in its intelligence and attention to detail. These "hidden" features don't require you to remember complex operations — they appear automatically when you need them.

Next time you copy something, remember to preview it — you might find PasteRheo has already prepared a surprise for you.

What other hidden features are waiting for you to discover? Download PasteRheo and start exploring.

5 Hidden Features of PasteRheo You Didn't Know About