Base64 Encoder for Mac
A native Mac Base64 encoder and decoder. Paste a string or a blob, get the encoded or decoded result in one step. Nothing leaves your machine.
What it does
Bench's Base64 tool encodes plain text or binary data to Base64 and decodes Base64 strings
back to their original form. Switch direction with a single click — encode or decode,
standard or URL-safe alphabet. The output updates as you type, so you don't need to hit a
button. It handles padding edge cases quietly, without requiring you to know whether the
trailing = signs are optional in the variant you're working with.
Why use Bench's Base64 encoder
Web-based encoders paste your data into a remote server's input field. That's fine for public test strings, but it's a habit worth breaking when the data includes tokens, credentials embedded in config files, or private keys in PEM armor. Bench runs on your Mac with no network calls, so the data never leaves the sandbox.
- Native Mac app. SwiftUI, single window, instant launch.
- Offline. No network calls. Whatever you paste stays on your Mac.
- No tracking. No analytics, no telemetry, no third-party SDKs.
- One-time purchase. $19 once, year of updates included, $9 optional renewal — no subscription.
Paste it. Bench picks the tool.
Smart Detection reads your clipboard locally and routes you to the Base64 encoder when it sees something like:
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9
The detection runs entirely on your Mac as a rule-based heuristic — it checks whether the clipboard content matches Base64 character patterns and length. Nothing is uploaded.
Related tools in Bench
Base64 Encoder ships inside Bench, alongside 17 other developer tools. $19 one-time, year of updates included.
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