All The ToolSphere tools
176 free online tools, listed by category so you can open any tool from one HTML directory.
- Merge PDF
- Split PDF
- Compress PDF
- PDF Metadata Editor
- Remove Blank Pages
- Rotate PDF
- Images to PDF
- Extract PDF Pages
- Reorder PDF Pages
- PDF to Images
- Compress PDF to Size
- Edit PDF
- Watermark PDF
- Delete PDF Pages
- Add Page Numbers
- Protect PDF
- Unlock PDF
- Flatten PDF
- PDF to Grayscale
- PDF to Text
- PDF to Word
- Crop PDF
- OCR PDF
- Sign PDF
- Redact PDF
- Compare PDF
- Repair PDF
- PDF to PDF/A
- N-up PDF
Images
Developer
Text
- Word Counter
- Character Counter
- Word Frequency
- Text Diff Checker
- Case Converter
- Slug Generator
- Reverse Text
- List Converter
- ROT13 Encoder
- Text ↔ Binary
- HTML Entity Encoder
- Text Cleaner
- Find and Replace
- Remove Duplicate Lines
- Remove Empty Lines
- Sort Lines
- Remove Line Breaks
- Add Line Numbers
- Extract Emails
- Extract URLs
- Readability Checker
- Passive Voice Checker
- Sentence Analyzer
- Filler Words Checker
- Spell Checker
- Punctuation Checker
- Confused Words Checker
Design
Calculators
- Tip Calculator
- Percentage Calculator
- Discount Calculator
- GPA Calculator
- Scientific Calculator
- Average Calculator
- Unit Price Calculator
- Fuel Cost Calculator
- BMI Calculator
- Salary to Hourly Calculator
- Overtime Pay Calculator
- Profit Margin Calculator
- Body Fat Calculator
- Ideal Weight Calculator
- Macro Calculator
- Protein Intake Calculator
- Water Intake Calculator
- Heart Rate Zone Calculator
- Sleep Cycle Calculator
- Running Pace Calculator
- Pregnancy Due Date Calculator
- Ovulation Calculator
- Break-Even Calculator
- Budget Calculator
- Freelance Rate Calculator
- Fraction Calculator
- GCF Calculator
- LCM Calculator
- Probability Calculator
- Combination Calculator
- Permutation Calculator
- Zakat Calculator
- Gold Zakat Calculator
- Salary After Tax Calculator
- Electricity Cost Calculator
- Cost of Living Calculator
Units
Date & Time
Converters
CAD
Speed
Calculator categories
Guides
- Add Overlay to an Image Without Uploading
- Remove a Watermark from an Image Without Uploading
- How to Extract Text from an Image
- PDF to Word vs Copy-Paste
- Why Speed Test Results Differ
- How JSON Formatting Works in the Browser
- JSON to CSV for Excel and Google Sheets
- JPG vs WebP for Web Images
- How WPM Is Calculated on a Typing Test
- What Is Ping? Network Latency Explained
- GLB vs GLTF: Which 3D Format Should You Use?
- Why Is My Ping High With Fast Internet?
- How to Open GLB Files Online
- How to Reduce Latency for Gaming and Video Calls
- What Is Jitter? Network Latency Variance Explained
- What Is Packet Loss & Why It Matters
- Wi‑Fi vs Ethernet: Latency, Speed & When to Use Each
- GLB vs OBJ: Which 3D Format Should You Use?
- How to Optimize GLB Files for the Web
- Merge PDF Online Without Uploading Files
- Private PDF Tools vs Upload Sites