Compare

DevKnife vs Webacus

Webacus is a web-based Swiss-army-knife for developers, while DevKnife is a native macOS offline app.

Which to pick

Pick DevKnife if you want…

  • All-in-one offline dev toolbox for macOS

Pick Webacus if you want…

  • Unified toolbox for common dev tasks
  • Web-based all-in-one dev toolkit
  • A free plan to start with

Side by side

What it is
DevKnife:DevKnife is a native macOS app that bundles 33 developer utilities—JSON editor, HTTP client, port scanner, and more—in one offline-first toolbox.
Webacus:Webacus is an all-in-one online calculator offering 145 dev-focused tools for encoding, compression, formatting, hashing, and more.
Best for
DevKnife:All-in-one offline dev toolbox for macOS
Webacus:Unified toolbox for common dev tasks
Who it’s for
DevKnife:Mac developers who want fast, offline access to common dev utilities without switching apps.
Webacus:Web developers who need quick one-off operations without leaving the browser.
Pricing
DevKnife:Paid
Webacus:Freemium
Plans
DevKnife:Founder's Lifetime License $29
Webacus:FREE $0 /year · PRO $36 $120 /year
Works with
DevKnife:macOS, Apple Silicon
Webacus:—

DevKnife features

  • JSON Editor. Edit, format, query and auto-repair JSON with tree view, JSONPath/ JMESPath support.
  • HTTP Client. Compose and inspect HTTP requests with headers, body, variables and formatted responses.
  • Converter. Convert data between JSON, YAML, TOML, XML and CSV locally on the Mac.
  • Regex Tester. Validate and debug regular expressions with real-time highlighting and cheat sheet.
  • Text Compare. Side-by-side comparison of two text blocks with instant difference highlighting.
  • JWT Debugger. Decode JWTs and view header, payload and signature in a readable format.
  • Port Scanner. Scan ports to test connectivity, verify services or check firewall settings.
  • Quick Look Previews. Show syntax-highlighted previews for 30+ file types directly in macOS Quick Look.

Webacus features

  • Encoding & Decoding. Base64, URL, HEX, HTML, JSON and other encoders/decoders in a single UI.
  • Compression. ZLIB, GZIP, LZJB compress and decompress data instantly.
  • Formatting & Minify. Pretty-print or minify HTML, CSS, JS, JSON, YAML and more.
  • Hashing & Crypto. Generate SHA, MD5, SHA-3 hashes and work with JWT, HMAC and X.509 certificates.
  • Workflows & Chaining. Combine multiple tools into a single workflow to run sequentially without copy-paste.
  • AI Assistant. Prompt-based generation of custom dev tools and operations.
  • Local-first & Privacy. All data stays in the browser; no server storage of user inputs.
  • File Support. Upload files, apply tools, and download the transformed result.

DevKnife vs Webacus FAQ

Is DevKnife or Webacus free?+

DevKnife is paid, with a free trial. Webacus has a free plan and paid plans.

On DevHunt

DevKnife

5 upvotes · Launched on DevHunt on Oct 7, 2025

Webacus

26 upvotes · Launched on DevHunt on Nov 26, 2024

Based on each tool's website and DevHunt data. Details may change; check the official sites.