Free Online Encoding & Hashing Tools (100% Browser-Based)
Encode and decode Base64, URLs, and JWTs, and generate MD5 or SHA-256 hashes — entirely in your browser. Built for developers who don't want to paste tokens and secrets into someone else's server.
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Base64 Encoder/Decoder
Encode and decode Base64 strings with support for text, images, and files.
- Base64 encoding
- File support
- Image encoding
URL Encoder/Decoder
Encode and decode URLs with support for component-level and full URL encoding. Perfect for web development and SEO optimization.
- Component encoding
- Full URL encoding
- Real-time validation
Base64 to PDF Converter
Convert Base64 encoded data to PDF files instantly. Support for text, images, and custom content with real-time validation and preview.
- Base64 validation
- PDF generation
- Image support
JWT Decoder / Encoder
Instantly decode, verify, and generate JSON Web Tokens (JWT) locally in your browser. Supports HS256, RS256, and more.
- Decode JWT
- Verify Signature
- Encode & Sign JWT
Base64 to Image Converter
Decode Base64 strings to images directly in your browser. 100% offline, private, and secure.
- Client-side decoding
- Real-time preview
- Metadata extraction
Hash Generator
Secure, client-side hash generator supporting MD5, SHA-256, bcrypt, and more. Hash texts or files instantly offline.
- MD5, SHA, and bcrypt algorithms
- Text and local File hashing
- Configurable Cost Factor (Rounds)
MD5 Hash Generator
Generate MD5 checksums from text or files instantly. 100% client-side — verify downloads and deduplicate files without uploading anything.
- Live MD5 hashing of text
- File checksums up to 100MB
- Lowercase / UPPERCASE output
SHA-256 Hash Generator
Compute SHA-256 hashes of text and files instantly. 100% client-side — verify release checksums and fingerprint data without uploading anything.
- Live SHA-256 hashing of text
- File checksums up to 100MB
- Lowercase / UPPERCASE output
About Encoding Tools
Digital ToolPad's encoding tools are 8 free, privacy-first utilities that run entirely in your browser. This collection includes Base64 Encoder/Decoder, URL Encoder/Decoder, Base64 to PDF Converter, JWT Decoder / Encoder, Base64 to Image Converter, Hash Generator, MD5 Hash Generator and SHA-256 Hash Generator. There's no signup and nothing to install — open any tool and start in seconds, on Windows, macOS, Linux, or your phone.
Every tool processes your data locally using modern web technology, so your files and text never leave your device — zero uploads, zero tracking. You can confirm it yourself by opening your browser's Network tab while you work, which makes these encoding tools a safe choice for sensitive or confidential content.
Private by design
Your files and text are processed on your device — nothing is uploaded. Verify it in your browser's Network tab.
Free, no signup
Every tool works instantly — no account, no trial limits, no credit card.
Works everywhere
Windows, macOS, Linux, or your phone — anywhere a modern browser runs.
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View collectionFrequently asked questions
Is it safe to decode JWTs and tokens here?
Yes — that's exactly why these tools are client-side. Your tokens, secrets, and payloads are decoded locally in your browser and never transmitted, unlike many online decoders.
What's the difference between encoding and hashing?
Encoding (Base64, URL encoding) is reversible — it changes how data is represented. Hashing (MD5, SHA-256) is one-way — it produces a fixed fingerprint that can't be turned back into the original data.
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Bookmark this page and browse the full Digital ToolPad library — 82+ privacy-first tools for developers, creators, and everyday tasks, all running 100% in your browser.
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