Learn
Guides & tutorials
Step-by-step tutorials for getting the most out of our tools.
How to Remove EXIF Data from Photos Before Sharing
EXIF data in photos can reveal your location, camera, and device info. Learn how to strip it completely in seconds.
EXIF Privacy Cleaner
How to View PDF Metadata (Title, Author, Creation Date)
Learn how to inspect the hidden metadata embedded in any PDF file to verify authorship, check creation dates, and audit documents.
PDF Metadata Viewer
How to Format and Validate JSON Online
Pretty-print messy JSON, validate syntax, and minify JSON for production. A complete guide for developers using browser-based tools.
JSON Formatter & Validator
How to Scan QR Codes Without an App
Scan QR codes from images or your webcam directly in the browser — no QR scanner app or installation needed.
QR Code Scanner
How to Generate SHA-256 Hashes (And Why You Need Them)
Learn how to generate SHA-256, SHA-1, and SHA-512 hashes to verify file integrity and secure passwords.
Hash Generator
How to Extract a Color Palette from Any Image
Pull dominant colors from images to build brand palettes, CSS variables, and design themes in seconds.
Color Palette Extractor
How to Clean CSV Data: Remove Duplicates and Empty Rows
Learn how to clean messy CSV files by removing empty rows, duplicate entries, and inconsistent whitespace.
CSV Cleaner
How to Test Regular Expressions Online
Write and debug regex patterns with live highlighting, match positions, and instant feedback in the browser.
Regex Tester
How to Compare Two PDF Documents for Differences
Find line-by-line differences between two versions of a PDF document to review edits, updates, and revisions.
PDF Compare
How to Encode and Decode Base64 (With Unicode Support)
Learn how to convert text to Base64 and back, including correct handling of emojis and non-Latin characters.
Base64 Encode & Decode
How to Redact a PDF Online (Permanently Remove Sensitive Data)
Covering names, account numbers, and personal data in PDFs so the content is truly gone — not just hidden under a rectangle.
PDF Redactor
How to Encrypt Text with AES-256 (Fully Offline)
Protect messages and notes with AES-GCM encryption that runs entirely in your browser — no servers, no uploads, no trust required.
AES Encrypt & Decrypt
How to Compress Images Online Without Losing Visible Quality
Shrink JPEG, PNG, and WebP images in your browser with a live quality slider and see the exact size savings before downloading.
Image Compressor
How to Convert SRT to VTT for HTML5 Video
Convert SRT subtitle files to WebVTT (VTT) in seconds, right in your browser. No uploads, no sign-ups, no software to install.
SRT to VTT Converter
How to Extract Plain Text from Subtitle Files
Strip timestamps and cue numbers from SRT and VTT files to get clean transcripts you can edit, translate, or reuse.
SRT to Text Extractor
How to Convert XML to CSV or Excel in Seconds
Turn nested XML data into clean rows for spreadsheets. Compare CSV vs Excel output and pick the right one for your workflow.
XML to CSV Converter
How to Convert JSONL to CSV or Excel
Convert line-delimited JSON (JSONL/NDJSON) files into spreadsheets for analysis, with zero uploads and full control over columns.
JSONL to CSV Converter
JSONL vs JSON: Which Format Should You Use?
Line-delimited JSON is built for logs and streaming; standard JSON excels at nested structures. Learn when to use each and how to convert between them.
JSONL to JSON Converter
How to Convert Parquet to CSV Without Python
Open Parquet files directly in your browser and export them as CSV or Excel. No Python, no AWS, no command line.
Parquet to CSV Converter
How to Convert PNG to PGM (Portable Graymap)
Turn PNG images into PGM grayscale images for computer vision, 3D printing, and scientific tools that expect PNM formats.
PNG to PGM Converter
How to Convert Images to BMP: A Practical Guide
Convert PNG and other images to uncompressed BMP for legacy software, microcontroller projects, and pixel-perfect workflows.
PNG to BMP Converter
How to Calculate Percentages: Quick Guide
Learn the percentage formula and how to compute percentage increases, decreases, and reverse percentages instantly.
Percentage Calculator
How to Convert Units: Length, Weight, Temperature and More
A practical guide to unit conversion for length, mass, volume, temperature, and digital data, including common mistakes to avoid.
Unit Converter
How to Convert Colors Between HEX, RGB, HSL and More
Convert color values between HEX, RGB, HSL, CMYK and other formats for web design, CSS, and print workflows.
Color Converter
How to Create Beautiful CSS Gradients
Learn how linear and radial gradients work, how to pick color stops, and how to generate production-ready CSS gradient code.
Gradient Generator