All tools
Security testing tools that prove the finding
Free, browser-based utilities for penetration testing, bug bounty and red team work. Paste modes make no network request at all and reach internal hosts no public scanner can, so a link is safe to hand to a client. Where a tool offers a URL mode, the page says exactly what that contacts and why — a browser cannot read another origin's response, so something has to fetch it.
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Practice labs
A deliberately vulnerable application, sandboxed in your browser. Nothing to install and no account — and because the target is confined to an opaque origin, it can be genuinely exploitable rather than simulated.
Practice labs — Harbourline Supply
AvailableOne vulnerable app, thirteen vulnerability classes, four graded levels each. No Docker, no VM, no account, and it keeps working offline. Every level ships the vulnerable source beside the fixed version, hints you take only as needed, a walkthrough, and a flag.
SQL Injection Lab
AvailableFour levels against a real MySQL-flavoured engine written for this lab: login bypass, UNION extraction with column-count discovery, blind boolean extraction, then the same job through a denylist. The exact SQL your input produced is shown to you as you go.
Headers & Policies
Response headers and browser security policies — what is missing, what it lets an attacker do, and the exact config line that fixes it.
URL Scanner
AvailableOne URL in, every check that can run: header grade, cookies, information disclosure, mixed content, CSP posture, third-party script risk, missing SRI, source maps, exposed .git and .env, CORS origin reflection, Host header reflection and clickjacking.
COOP & Tabnabbing
AvailableProve whether a site severs window.opener, map every vector that still leaks a handle, and give clients a probe for their own outbound links.
Security Header Analyzer
AvailableGrades a response A+ to F with transparent scoring, explains what an attacker gains from each gap, detects all 86 OWASP information-disclosure headers, and generates the nginx, Apache, IIS, Express or Cloudflare fix.
CSP Analyzer & Evaluator
AvailableTests every allowlisted host against 166 known JSONP and AngularJS bypass endpoints, resolves the CSP 3 fallback chain, catches the misspellings and missing semicolons that void a policy silently, then rewrites it as a strict nonce policy with the config for your stack.
Reporting & Evidence
Only about a quarter of an engagement is actual testing. These target the rest — scoring, writing up, and turning raw output into evidence.
CVSS Calculator
PlannedCVSS 4.0 and 3.1 with every metric explained in plain English, contradictory selections flagged, and the justification sentence written for your report.
Finding Write-up Library
PlannedPre-written impact, reproduction and remediation for common findings, with CVSS pre-filled. Edit and export instead of starting from a blank page.
Evidence Formatter
PlannedTurn a raw request and response into a clean evidence block with credentials, tokens and PII masked automatically.
Report Skeleton Builder
PlannedGenerate a complete report structure — scope, methodology, executive summary, findings, appendices — as editable Markdown.
Methodology Checklist
PlannedOWASP WSTG, MASTG and PTES as trackable checklists with saved progress, so nothing gets skipped and coverage is provable.
Recon & Discovery
Find the surface, then make sense of what came back. Anything that needs to reach a host generates the commands instead of pretending a browser can do it — except CVE lookup, where the NVD API genuinely allows direct queries.
Nmap Result Parser
PlannedRaw scan output into a filterable table of hosts, ports and service versions, with version-disclosure flags and CSV or Markdown export.
SSL/TLS Analyzer
AvailableComputes an SSL Labs grade locally from sslscan, testssl.sh, nmap, sslyze or openssl output — so internal hosts get a real grade. Full derivation, the testssl.sh vulnerability set, cipher classification, PCI/NIST/HIPAA mapping and generated config.
Scope Checker
PlannedPaste a messy asset list to dedupe and normalise it, then flag anything outside your CIDR or wildcard scope rules before you touch it.
URL Corpus Filter
PlannedFilter a large URL list by extension, parameter, status or pattern, and extract the parameter names worth testing.
Google Dorks Generator
PlannedBuild and launch dork queries for one target — exposed documents, config and backup files, login portals, verbose errors, cloud storage and code leaks. Every query is a link to open or a string to copy, for Google, Bing and DuckDuckGo.
Recon Source Hub
PlannedOne target in, every source out — crt.sh, Shodan, Censys, VirusTotal, Wayback, DNS and whois lookups as ready links, plus prepared subfinder, amass, httpx and dnsx commands.
WAF Identifier
PlannedFingerprint the WAF from a response you already captured. Matches headers, cookies and block-page signatures against the wafw00f reference set of 173 products, then lists the evasion notes that apply to that specific product.
CVE Lookup
PlannedPaste nmap -sV output and get the known CVEs for each product and version, with CVSS score, attack vector and whether a public exploit exists — queried live from the NVD API, which permits direct browser access.
Writeup & Report Search
PlannedOne keyword across every public disclosure source — HackerOne disclosed reports, Bugcrowd, Medium and InfoSec Writeups, pentester.land, GitHub and scoped search-engine queries. Filter by vulnerability class, bounty range or programme.
Tokens & Auth
Decode, inspect and attack the credentials and assertions that carry a session.
JWT Analyzer
PlannedDecode, inspect, re-sign and attack tokens — alg:none, weak HMAC secrets, kid injection and missing claim validation.
SAML Decoder
PlannedInflate and decode SAML requests and responses, pretty-print the XML, and flag signature and assertion weaknesses.
OAuth Flow Inspector
PlannedDecode an authorization redirect, inspect state and PKCE, and flag open-redirect and CSRF exposure in the flow.
Secure Password Generator
PlannedPasswords and passphrases from crypto.getRandomValues, with true entropy in bits and an offline crack-time estimate per hash algorithm. Nothing generated ever leaves the browser.
Payloads & Encoding
Context-aware payload construction — the right payload for where the injection actually lands, and why.
Payload Generator
PlannedPayloads for every injection class — XSS, SQLi, SSTI, SSRF, XXE, command injection, LFI and path traversal, NoSQL, LDAP, XPath, CRLF, open redirect, deserialisation. Choose the class and the context the injection lands in, get the payload that works there with the reasoning, plus WAF-bypass encodings.
Reverse Shell Generator
PlannedOne-liners by platform and language, with encoding options and listener commands alongside.
Paste Anything Analyzer
PlannedAuto-detect and decode whatever you paste — JWT, base64, hex, URL encoding, hash type or timestamp format.
AMSI Bypass Reference
PlannedReference implementations of each known AMSI bypass class, paired with the detection signature and event ID that catches it — so red teams can measure coverage and blue teams can verify they are actually catching it.
Cloud & API
Keys and storage that end up exposed. Both of these generate the candidates and the commands — a browser cannot enumerate cloud endpoints itself, so the work happens where you have access.
Google Maps API Key Tester
PlannedTest a leaked Maps key against each Google endpoint to see which are unrestricted, what each call costs, and produce the billing-impact proof of concept a report needs.
Cloud Bucket & Instance Finder
PlannedBuild bucket and hostname permutations from a company name or domain across S3, Azure Blob and Google Cloud Storage naming schemes, then get the aws, az and curl commands to test them.
Learn & Career
For anyone getting into the field, or moving within it. Both work from curated content rather than guesswork, so the output is checkable.
Roadmap Generator
PlannedPick a track — AppSec, red team, cloud security, SOC and blue team, malware analysis, mobile, OT or GRC — and get a staged plan with prerequisites, labs, certifications and a realistic timeline, exportable as Markdown for your own notes.
Interview Question Generator
PlannedPaste a job description and get the questions that role actually attracts, matched from the skills and tools named in it — grouped by topic and difficulty, each with the answer outline an interviewer is listening for.
Files & Metadata
Inspect what a file or message is carrying that you did not intend to send. Files are read in your browser and never uploaded.
Document Metadata Inspector
PlannedDrop a file to see the author, GPS coordinates, software versions and internal paths inside it — before it reaches a target.
JS SourceMap Unmapper
PlannedReconstruct original sources from an exposed .map file and sweep them for hardcoded secrets, internal endpoints and debug routes.
Email Header Analyzer
PlannedParse raw email headers for SPF, DKIM and DMARC results with a readable hop timeline, for phishing triage.
Feedback & community
Something wrong, something missing, or something you want built.
Feedback & support
OpenReport a bug, flag a finding that is wrong, request a tool, or ask a question. Everything opens a pre-filled public issue, so you can follow the fix rather than wonder whether it was read.
Join the cybersecurity community
OpenA group for people working in security or breaking into it — writeups, questions answered, and the things that are hard to find on your own. Students and freshers welcome.