Learn & Resources
Everything you need to know about our tools and privacy.
Free Online Candlestick Chart Maker — No Upload, No Account
Create professional candlestick charts instantly in your browser. No file uploads, no account required. Your financial data never leaves your device.
The Chart PNG That Remembers Your Data
LokalTools chart PNGs secretly embed your full dataset and settings — paste one back to resume editing instantly, on any device or OS.
How to Encode Images to Base64 for CSS and HTML Embedding
Base64 image encoder: convert PNG, JPG, SVG to Data URLs in your browser. No upload needed — embed images in CSS and HTML without extra HTTP requests.
MD5 vs SHA-256: Which Hash Algorithm Should You Use and When
Hash generator guide: MD5 vs SHA-256 vs SHA-512 explained. Generate cryptographic hashes in your browser privately — no upload, Web Crypto API, instant results.
What Is Base64 Encoding and How to Use It
Learn what Base64 encoding is, when to use it, and how to encode or decode Base64 strings instantly with LokalTools — no upload, no account, fully private.
How to Format and Validate JSON Instantly in Your Browser
Format, pretty-print, and validate JSON online with LokalTools' free JSON formatter — no upload, no account, instant results directly in your browser.
How to Boost Audio Volume Without Re-encoding the Whole File
Boost audio volume directly in your browser — LokalTools Audio Booster uses WebAssembly to increase MP3, WAV, and OGG levels. No upload, completely free.
How to Merge Multiple Audio Files Into One
Merge multiple audio files into one track directly in your browser. LokalTools Audio Joiner uses WebAssembly to join MP3, WAV, OGG files — no upload needed.
How to Record High-Quality Voice Memos in Your Browser
Free browser voice recorder by LokalTools — record high-quality voice memos online, no app download, no upload required. Audio stays on your device.
How to Extract MP3 Audio From Any Video File Locally
Extract MP3 audio from any video file locally with LokalTools' browser-based audio extractor. Powered by WebAssembly — no upload, completely private.
How to Fix a Sideways or Upside-Down Video Online
Rotate video online for free with LokalTools. Fix sideways or upside-down videos in your browser using WebAssembly — no upload, no account needed.
How to Convert Markdown to PDF — Fast, Clean, and Private
Markdown to PDF conversion in your browser using LokalTools — WebAssembly-powered, supports all .md files, no uploads required, your docs stay private.