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Fibonacci ToolBox Every small tool, in one place.

Convert HEIC photos, merge and split PDFs, format JSON, check a domain’s SPF and DMARC, generate QR codes and more. Each run is a background job on our servers, so a large batch never freezes your browser, and your files are deleted after six hours.

See plans and prices Start free on toolbox.fib.im

Subscribe here with your Fibonacci account. You can cancel at any time.

What it does

What Fibonacci ToolBox does.

  • Images and PDFs

    Convert between image formats (HEIC from iPhones included), resize, compress, strip EXIF, make favicons. Merge, split, compress, rotate and password-protect PDFs, or turn them into images and back.

  • Text and data

    Case conversion, word counts, diffs and a regex tester. Format and convert JSON, YAML, TOML and CSV, turn CSV into Excel and back, and generate types from a JSON sample.

  • Network and email checks

    DNS lookups, a domain’s MX, SPF, DMARC and DKIM setup with a verdict for each, TLS certificates, redirect chains and headers, WHOIS and subnet maths.

  • Generators and developer tools

    QR codes and barcodes, passwords, UUIDs, hashes and HMACs, test data; cron expressions explained, timestamps and time zones converted, SQL and HTML formatted.

Plans and prices

Choose a plan.

Prices in US dollars, excluding taxes. Creem adds any tax that applies at checkout, before you pay.

Billing period

Every plan includes

  • Every tool in the catalogue
  • Runs in the background, with live progress
  • Results kept for a few hours under My tasks
  • Files deleted after six hours

Orders are processed by Creem, our merchant of record. Creem handles the payment, sales tax and VAT, and invoices, and its name appears on your receipt. See the Refund Policy and the Terms.

Questions

About Fibonacci ToolBox.

What is a task?

One successful run of a tool: converting a batch of photos, merging a set of PDFs, one DNS lookup. A run that fails does not use a task.

Is there a free plan?

Yes. Every Fibonacci account gets 4 tasks a month on the Free plan, with no card needed. Sign in on toolbox.fib.im and start.

What happens to my files?

They are processed on our servers for the task you ran and deleted after six hours. Until then you can download the result again from My tasks.

Can I change plan or cancel?

Yes. Manage billing on your account page opens your billing portal at Creem, where you can switch plans, update your card or cancel. After cancelling you keep the plan until the end of the period you have paid for.

Who processes the payment?

Creem, our merchant of record. Creem takes the payment, adds the sales tax or VAT that applies and sends the receipt. The 14-day money-back guarantee on a first payment is in the Refund Policy.

Not sure which plan fits?

Tell us what you need and we will suggest a plan, or set one up with you. We reply by WhatsApp or email.

Compare all plans Talk to us