JSON Formatter for Mac
A native Mac JSON formatter. Paste minified JSON, get it back pretty-printed and syntax-highlighted. Spot the missing comma before you ship it.
What it does
Bench's JSON formatter parses a JSON string and re-renders it with consistent indentation and syntax coloring. Keys, strings, numbers, booleans, and null values are each styled differently, so structure jumps out at a glance. If the JSON is malformed, the formatter shows an error pointing to the problem line rather than silently failing. You can also compact formatted JSON back to a single line when you need to paste it into a config that doesn't tolerate whitespace.
Why use Bench's JSON formatter
Most of the time, the JSON you're looking at came from a log, an API response body, or a build artifact — often minified. Pasting it into a web-based formatter works, but it means sending a potentially sensitive payload over the network. Bench formats locally: no request leaves the sandbox, no copy of your payload touches a remote server.
- 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 JSON formatter when it sees something like:
{"order_id":"8f3b","items":[{"sku":"BNCH-001","qty":2}],"total":19.99}
The detection runs entirely on your Mac as a rule-based heuristic — it checks whether the clipboard content parses as valid JSON. Nothing is uploaded.
Related tools in Bench
JSON Formatter ships inside Bench, alongside 17 other developer tools. $19 one-time, year of updates included.
Get BenchBench is published by Zentsu LLC. Back to Bench · Renewal FAQ · Support.