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The utilities we built for ourselves, now yours too.
Focused tools for building, debugging and pricing out automation. Each one runs entirely in your browser, no account, no data stored, no catch.
22
Tools live now
2
In development
9
Categories covered
0
Data ever stored
Scheduling
Cron Expression Builder & Explainer
Turn any cron expression into plain English, or build one from scratch.
Use case
You inherited an n8n Schedule Trigger with "0 8 1 */3 *" and need to know exactly when it fires before you touch it.
n8n
n8n Workflow JSON Validator
Paste your workflow JSON, catch orphaned connections and missing credentials before you import it.
Use case
You downloaded a community workflow template and want to check it is not broken before importing it into production.
n8n
n8n Expression Tester
Test {{$json.field}} style expressions against real sample data and see the exact output before pasting into n8n.
Use case
Your expression keeps returning "undefined" inside n8n and you want to isolate the problem outside the editor.
Development
Webhook Sample Payload Generator
Generate realistic sample payloads for Stripe, Shopify, HubSpot, and Typeform events, no live trigger needed.
Use case
You are building an n8n workflow for a "new Shopify order" trigger but do not want to place a real test order to get sample data.
Strategy
"Automate or Not" Decision Score
Answer 5 questions about a task, get a scored verdict on whether it is worth automating.
Use case
Your team is debating whether a monthly reporting task is worth building automation for, or if it is not frequent enough to bother.
Cost
Zapier vs Make vs n8n Cost Calculator
Enter your real task volume, get the real monthly cost on all three platforms.
Use case
You are choosing a platform before building anything and want real numbers instead of guessing from the pricing page.
AI
AI API Cost Estimator
Estimate your monthly Claude, GPT and DeepSeek API cost before you build the agent.
Use case
You are scoping an AI lead-qualification workflow and need a defensible monthly cost number before pitching it internally.
Development
JSON ⇄ CSV Converter
Paste either format, get a clean conversion in the other, ready for the next node.
Use case
A client sent you a CSV export and your n8n workflow expects JSON, or the reverse for a report someone needs in Excel.
Development
CSV Column Mapper
Paste two CSV headers, get instant field-mapping suggestions for a migration or integration.
Use case
You are migrating contacts from one CRM export format to another and need to map "Full Name" to "first_name"/"last_name" and similar mismatches fast.
Development
Regex Tester for Automation
Test a pattern against real sample text and get a plain-English explanation of what it matches.
Use case
A Code node is supposed to extract an order number from an email subject line and your regex is not matching every format.
Development
JWT Decoder
Paste a JWT to instantly see its header, payload, and expiry, decoded and formatted.
Use case
An API call is failing with a 401 and you need to check whether the JWT you are sending has actually expired.
Development
Base64 & URL Encoder / Decoder
Encode or decode Base64 and URL-encoded strings instantly, both directions, auto-detected.
Use case
An API expects a Base64-encoded Authorization header and you need to build it correctly before your first request fails silently.
Scheduling
Timestamp & Timezone Converter
Convert Unix timestamps to human dates across timezones, both directions, instantly.
Use case
A webhook payload gives you "1789660800" and you need to know what that actually means in your client's timezone before debugging further.
Strategy
Business Hours & SLA Deadline Calculator
Calculate a real SLA deadline from a start time and business hours, correctly skipping weekends and after-hours.
Use case
A support ticket needs a response within "2 business hours" of a Friday 4pm submission, and you need the exact real deadline, not a naive +2 hour guess.
Development
JSON Diff Checker
Compare two JSON blobs side by side and see exactly what changed, added, removed, or modified.
Use case
A workflow started behaving differently after an API update and you need to see exactly what changed between the old and new response payload.
Marketing
UTM Campaign Link Builder & QR Code
Build a fully-tagged campaign URL and generate a scannable QR code for it in one step.
Use case
You are launching a print flyer and email campaign and need consistent, trackable links for both without hand-typing UTM parameters.
Design
Color Contrast Checker (WCAG)
Check any foreground/background color pair against WCAG AA and AAA contrast requirements instantly.
Use case
You are building a client-facing dashboard or form and need to confirm your brand colors are actually legible and accessible before shipping.
Development
Password & API Secret Generator
Generate cryptographically random passwords and API keys with a live entropy/strength indicator.
Use case
You are provisioning a new webhook signing secret or service account password and need something genuinely random, not "Company2026!".
Development
Fake Test Data Generator
Generate realistic but entirely fake business records (names, emails, companies) to test a workflow safely.
Use case
You need to test a new customer-onboarding automation end to end without risking a real customer record or triggering a real email.
Development
Markdown ⇄ HTML Converter
Convert Markdown to clean HTML or the reverse, ready to paste into an email template or CMS field.
Use case
You wrote a client update in Markdown but your email automation tool's body field only accepts HTML.
Cost
True Hourly Cost Calculator
Calculate an employee's real fully-loaded hourly cost, including overhead, benefits, and taxes, not just salary ÷ hours.
Use case
You want an accurate labor-cost figure to plug into an ROI calculation instead of a rough salary/2080 estimate that understates real cost.
Compliance
GDPR Data Retention Deadline Calculator
Enter a data collection date and your retention policy, get the exact deletion deadline.
Use case
Your compliance policy says customer support data is retained for 24 months, and you need the exact date a specific record must be deleted.
In development, 2 more on the way
Development
Webhook Inspector
Get a temporary URL, send it a request from anywhere, see the full payload live.
AI
Automation Opportunity Finder
Describe a process in plain language, get an AI-scored breakdown of what to automate first.
Why we built these for free
We built each of these to solve a problem our own team hit repeatedly while deploying automations for clients. Publishing them costs us nothing to maintain and saves you the search. If one of them saves you time, the free automation audit is the natural next step, but there is no obligation either way.