Free tools
Free tools
for support teams.
Calculators, converters and debuggers that support teams and developers use every day. Free, no sign-up, and most run entirely in your browser.
Support metrics
CSAT calculator
Enter survey results to get your customer satisfaction score, rating breakdown and NPS. Print it as a one page report.
Help desk ROI calculator
Plug in ticket volume, handle time and agent cost to see savings, payback period and cost per ticket before and after.
Response time calculator
Enter tickets or paste a CSV export to get average, median and 90th percentile first response time, plus SLA compliance.
Support funnel calculator
See where customers drop off between needing help and getting an answer, and which leak to fix first.
SLA countdown timer
Start a timer per ticket, see which one is due next and get a heads-up before you breach the SLA.
Developer utilities
JSON formatter
Paste JSON to validate and pretty-print it as you type. Broken JSON gets an exact error location and a one-click fix.
JWT decoder
Paste a JWT to see its header, payload and claims, with exp, iat and nbf as real dates. Decoded locally.
Base64 encode and decode
Encode text or a file to Base64, or decode Base64, Base64URL and data URIs back to text or a file.
HTML to Markdown
Paste HTML or open an .html file to get clean Markdown for docs, help articles, LLM prompts and RAG.
Markdown to HTML
Write or paste Markdown, preview it, and copy the HTML or download a complete styled page.
Diff checker
Paste two versions to see what changed, line by line with the changed words highlighted.
IP geolocation lookup
Find the country, ASN and network of an IP address, or paste a log and look up every IP in it.
Writing and email
Email header analyzer
Paste the headers of any email to see every server it passed through, how long each hop took and whether SPF, DKIM and DMARC passed.
Email signature generator
Fill in your details, pick a layout and color, and paste the signature into Gmail, Outlook, Apple Mail or Yahoo.
Text case converter
Type once, get 13 cases. Each line is converted on its own, so you can paste a whole list.
Support writing checklist
Paste a draft reply for instant checks on tone and clarity, then tick off the rest before you hit send.