Developer Tools · head to head
Helix vs OWASP ZAP
Helix
Developer Tools
Post-modern modal text editor for the terminal, written in Rust
- From
- Free
- Rated
- -
OWASP ZAP
Cybersecurity
Free, open-source web application scanner and intercepting proxy, now governed by the Software Security Project.
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Helix no official GUI application yet, so it requires comfort with terminal workflows.; OWASP ZAP authenticated scanning of modern single-page applications is the hard part and ZAP makes you build it by hand: session handling, token refresh and login scripts are configured per application, and a misconfigured session means the scanner logs itself out and reports a clean result for pages it never reached.
- They diverge on capability: Helix covers Multiple Selections, OWASP ZAP covers Intercepting proxy.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Helix and OWASP ZAP actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Helix
- Multiple Selections
- Tree-sitter Syntax Trees
- Built-in LSP Support
- Fuzzy File Finder
- Project-wide Search
Only in OWASP ZAP
- Intercepting proxy
- Passive scanner
- Active scanner
- AJAX spider
- Automation Framework
- Headless daemon and REST API
- Docker images
- Add-on marketplace
What people use each for
The jobs each tool is most often brought in to do.
Helix
- Editing code over SSH or in tmux sessionsnot OWASP ZAP
- Working with syntax-aware selection and navigationnot OWASP ZAP
- Getting IDE-like completion and diagnostics without plugin setupnot OWASP ZAP
- Lightweight, low-resource code editing on laptopsnot OWASP ZAP
OWASP ZAP
- Adding a baseline security scan to every application's pipeline where per-target commercial licensing would limit coverage to a handfulnot Helix
- Manual penetration testing that needs an intercepting proxy, request replay and fuzzing without a paid licence per testernot Helix
- Teaching developers what an attack against their own endpoint looks like, using a tool they can install themselvesnot Helix
- Pre-release regression scanning of an internal application that would never justify a commercial DAST subscriptionnot Helix
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Helix
- No official GUI application yet, so it requires comfort with terminal workflows.
- Plugin ecosystem is far smaller than Vim's or Neovim's, limiting customization.
- Keybindings differ from both Vim and Kakoune, adding a learning curve for users of either.
- Configuration is more limited than Neovim's Lua-based extensibility.
OWASP ZAP
- Authenticated scanning of modern single-page applications is the hard part and ZAP makes you build it by hand: session handling, token refresh and login scripts are configured per application, and a misconfigured session means the scanner logs itself out and reports a clean result for pages it never reached.
- There is no support contract in the product, so when a scan breaks the day before a release the escalation path is a GitHub issue and a community chat, which is not an answer that satisfies a delivery manager or an auditor who wants a named responsible party.
- Active scanning sends genuine attack traffic, so it can create records, trigger emails, exhaust rate limits or destabilise a fragile environment, and pointing it at production without prior agreement produces an incident rather than a test result.
- Output needs triage: passive rules generate large volumes of low-severity informational findings about headers and cookie flags that bury the few results that matter, and a team without someone tuning the rule set stops reading the report within a few sprints.
- As a dynamic scanner it can only test what it can reach, so authorisation flaws between accounts, business logic abuse and anything behind an undiscovered endpoint go unreported, and a passing ZAP scan is evidence of nothing more than the absence of the classes of bug it looks for.
Pricing, plan by plan
Helix
Free- FreeFree
- Full editor, no paid tiers
OWASP ZAP
Free- Free & Open SourceFree
- Full functionality
- Active & passive scanning
- Spider
Which should you pick?
Choose Helix if
- You need multiple selections.
- You want to start without paying.
- You work on linux, mac, windows.
- You also want tree-sitter syntax trees.
Choose OWASP ZAP if
- You need intercepting proxy.
- You want to start without paying.
- You work on Desktop, Cli, Api.
- You also want passive scanner.
Questions people ask
- Is Helix or OWASP ZAP better?
- Neither clearly leads. Helix starts at Free and OWASP ZAP at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Helix or OWASP ZAP?
- Helix starts at Free and OWASP ZAP at Free.
- Does Helix or OWASP ZAP run on more platforms?
- Helix runs on linux, mac, windows. OWASP ZAP runs on Desktop, Cli, Api.
- Can I use Helix for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Helix best used for?
- Helix is most often used for editing code over ssh or in tmux sessions, working with syntax-aware selection and navigation, getting ide-like completion and diagnostics without plugin setup, lightweight, low-resource code editing on laptops. Of those, editing code over ssh or in tmux sessions and working with syntax-aware selection and navigation are not what OWASP ZAP is typically brought in for.
- What can Helix do that OWASP ZAP cannot?
- Helix covers Multiple Selections, Tree-sitter Syntax Trees, Built-in LSP Support, Fuzzy File Finder. OWASP ZAP covers Intercepting proxy, Passive scanner, Active scanner, AJAX spider.
Answered from the vendors’ own pages
Helix: Is Helix free to use?
Yes, Helix is free and open source, licensed under the Mozilla Public License 2.0 (MPL-2.0), with no paid tiers or subscriptions.
SourceOWASP ZAP: Is it still called OWASP ZAP?
The project left OWASP in August 2024 and is now governed by the Software Security Project, with core development sponsored by Checkmarx. The tool is now just ZAP, though most existing documentation, courses and search results still use the OWASP name.
Helix: How do I install Helix?
Install via your operating system's package manager, or download pre-built binaries from GitHub Releases; the nightly version requires building from source.
SourceOWASP ZAP: Is it free for commercial use?
Yes. It is Apache 2.0 licensed, with no per-application, per-scan or per-user cost, and it can be used and modified commercially without a licence agreement.
Helix: Does Helix support plugins?
Not yet. Helix currently has no plugin system, though the project intends to add one eventually; it instead ships with built-in LSP and tree-sitter support out of the box.
SourceOWASP ZAP: Can it replace a penetration test?
No. It automates checks for known vulnerability classes against endpoints it can reach. It does not reason about business logic, chain findings into an attack, or test authorisation between accounts, which is most of what a tester actually does.
Helix: How do I configure Helix?
Helix ships with sane modern defaults requiring much less config-file fiddling than Vim, though settings can still be customized in a config.toml file.
SourceOWASP ZAP: Does it run in CI?
Yes, through the official Docker images and the Automation Framework, which defines scan jobs in YAML so configuration lives in the repository. A baseline passive scan is the usual starting point because it is fast and non-intrusive.
Helix: Where can I get help or support?
Support is community-driven via GitHub for code and issues, the Matrix chat for discussion, and OpenCollective for funding ongoing development.
SourceOWASP ZAP: How does it compare to Burp Suite?
Burp Suite Professional is the more polished manual testing tool and has a stronger scanner and extension ecosystem, but it is licensed per tester and Burp Suite Enterprise per target. ZAP is the better fit where cost per target is the binding constraint; many teams use both.
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