# Toolkit by thechelsuk

> A digital garden of small browser tools, templates and notes at https://tools.thechels.uk/, made by thechelsuk for their own work and shared for anyone to use. Tools run in the browser; nothing typed into them is uploaded unless the tool says it uses an outside service.

Key facts:

- Free to use, no account or sign-up
- Made in the UK by thechelsuk (https://thechels.uk/about)
- UK-specific calculators cover redundancy pay, FIRE retirement, ISA bridging and drawdown runway
- Every library, gem, action and outside service is listed in the SBOM at https://tools.thechels.uk/sbom

## Formatters

- [Escape HTML Entities](https://tools.thechels.uk/escape-entities): Turn <, >, &, " and ' into HTML entities so text shows as code, or turn them back.
- [JSON Pretty Printer](https://tools.thechels.uk/json-pretty-printer): Format messy or minified JSON, check it's valid, or minify it again.
- [JSON to YAML Converter](https://tools.thechels.uk/json-to-yaml): Convert JSON to YAML in block, flow or quoted style, or YAML back to JSON.
- [SQL Pretty Printer](https://tools.thechels.uk/sql-pretty-printer): Format SQL for SQLite, Postgres, MySQL and standard SQL.
- [YAML Explorer](https://tools.thechels.uk/yaml-explorer): Browse a large YAML file as a collapsible tree, from pasted text or a URL.

## Text

- [Cipher Encoder and Decoder](https://tools.thechels.uk/cipher): Encode and decode text with Caesar, Atbash, Vigenère or Morse code.
- [Extract URLs](https://tools.thechels.uk/extract-urls): Pull every link out of copied web content or plain text, one per line.
- [Hex Colour Codes](https://tools.thechels.uk/hex-codes): Preview a hex colour, see its RGB and HSL values and contrast, and keep a palette.
- [List Sorter](https://tools.thechels.uk/list-sorter): Sort a list A–Z or Z–A, reverse it, and remove duplicates.
- [Lorem Ipsum Generator](https://tools.thechels.uk/lorem): Placeholder text by the paragraph, ready to paste into a design.
- [Paste Rich Text to HTML](https://tools.thechels.uk/paste-rich-text): Paste formatted text from a web page or document and get its HTML.
- [Random Slug Generator](https://tools.thechels.uk/slug): Make random, URL-safe slugs for links, filenames and IDs.
- [String Sorter](https://tools.thechels.uk/string-sorter): Reverse text, reverse the order of words, or sort the characters A–Z.
- [Writing Style Checker](https://tools.thechels.uk/writing-style): Highlight weasel words, passive voice and repeated words in your writing.

## Images

- [Convert Image to JPEG](https://tools.thechels.uk/image-to-jpeg): Turn a PNG, WebP or other image into a JPEG at the size and quality you choose.
- [Convert Image to SVG](https://tools.thechels.uk/image-to-svg): Trace a JPEG or PNG into a scalable SVG, with a choice of detail levels.
- [Exif Viewer](https://tools.thechels.uk/exif): See the hidden metadata in a photo, including where it was taken, and save a copy without it.
- [Image Resize and Quality Comparison](https://tools.thechels.uk/image-resize-quality): See one image at ten combinations of size and JPEG quality, with file sizes, and download the best.
- [QR Code Scanner](https://tools.thechels.uk/qr): Read a QR code from a photo, a screenshot or your camera, and see what's in it before you open it.

## Finance

- [FIRE Planner with Pension Pots](https://tools.thechels.uk/fire-two): Drag a slider to see the earliest age your pension, SIPP and ISA pots last to 100.
- [ISA Bridge Apex Calculator](https://tools.thechels.uk/the-ISA-retirement-apex-bridge-tool): Find the ISA "apex" that bridges you from early retirement to your pension, or the earliest age you could stop.
- [Invoice Editor](https://tools.thechels.uk/invoice/): Fill in a simple invoice with your logo, line items and tax, then print it or save it as a PDF.
- [UK Drawdown Runway Calculator](https://tools.thechels.uk/uk-runway-calculator-drawdown): How long a lump sum, redundancy payment or settlement lasts when you draw it down monthly.
- [UK FIRE Retirement Calculator](https://tools.thechels.uk/fire): Will your savings last from early retirement to 100, alongside a final salary and State Pension?
- [UK Redundancy Pay Calculator](https://tools.thechels.uk/uk-redundancy-pay-calculator): Statutory redundancy, notice and holiday pay for 2026/27, with tax, NI and the likely HMRC refund.

## Planning and work

- [Ensemble Programming Roles](https://tools.thechels.uk/teaming): Assign and rotate ensemble programming roles, with prompts for what each role does.
- [GitHub Issue to Markdown](https://tools.thechels.uk/github-issue): Turn a GitHub issue or pull request and all its comments into one Markdown document.
- [ME/CFS Activity Plan](https://tools.thechels.uk/activity-plan): Plan or record four weeks of activity hour by hour, from sleep to high effort, and print it.
- [Monte Carlo Delivery Forecast](https://tools.thechels.uk/monte-carlo): Forecast how many sprints a backlog will take, from your team's past throughput.
- [Pomodoro Timer](https://tools.thechels.uk/pomodoro): A focus timer with a goal for each session and a log of what you got done.
- [Refinement Question Generator](https://tools.thechels.uk/refinement): Random thought-provoking questions to sharpen backlog refinement sessions.
- [Rolling Average Chart](https://tools.thechels.uk/rolling-average): Chart a series of numbers with its rolling average and overall average.
- [Weather by Postcode](https://tools.thechels.uk/weather-forecast): Current weather for any UK postcode, using your own OpenWeatherMap key.

## Run locally

- [Film Catalogue Search](https://tools.thechels.uk/film): Search your own YAML list of films to check whether you've seen something before.
- [Podcast Artwork Grid](https://tools.thechels.uk/podcast-grid): Turn the podcasts in an OPML export into a grid of their cover art, and save it as an image.
- [Podcast Episode Dates](https://tools.thechels.uk/podcast-dates): The latest episode date for every podcast in an OPML file, to spot ones that have stopped.
- [Stale or Broken RSS Feed Checker](https://tools.thechels.uk/blogroll-dates/): The latest post date for every blog in an OPML blogroll, to spot stale or broken feeds.

## Templates

- [Data Post Template](https://tools.thechels.uk/templates/data): Markdown front matter for a data post.
- [Dora Assessment 24 key capabilities checklist](https://tools.thechels.uk/dora-assessment): Assess a team against the DORA capabilities.
- [E2 Role Profile](https://tools.thechels.uk/e2): Role profile template for a software engineer.
- [E3 Role Profile](https://tools.thechels.uk/e3): Role profile template for a senior software engineer.
- [E4 Role Profile](https://tools.thechels.uk/e4): Role profile template for an engineering manager.
- [Ensemble Programming Resources](https://tools.thechels.uk/ensemblism/resources): Ensemble programming: further reading.
- [Ensemble Programming Roles](https://tools.thechels.uk/ensemblism/roles): Ensemble programming: the roles people take.
- [Ensemble Programming Rules](https://tools.thechels.uk/ensemblism/rules): Ensemble programming: ground rules for a session.
- [Ensemble Programming Symptoms](https://tools.thechels.uk/ensemblism/symptoms): Ensemble programming: signs a session is going wrong.
- [Film Post Template](https://tools.thechels.uk/templates/film): Markdown front matter for a film post.
- [Interview Template](https://tools.thechels.uk/interview-template): Template for conducting interviews.
- [Music Post Template](https://tools.thechels.uk/templates/music): Markdown front matter for a music post.
- [Principles](https://tools.thechels.uk/principles): Engineering principles for a software team.
- [Q3 Role Profile](https://tools.thechels.uk/q3): Role profile template for a senior QA engineer.
- [Quote Post Template](https://tools.thechels.uk/templates/quote): Markdown front matter for a quote post.
- [Regular Post Template](https://tools.thechels.uk/templates/post): Markdown front matter for a regular post.
- [SLA Policy Template](https://tools.thechels.uk/Service-level-agreement-policy): A service level agreement policy to adapt for your team.
- [Secure Development Policy Template](https://tools.thechels.uk/secure-dev-policy): A secure development policy to adapt for your team.
- [Strategy Template](https://tools.thechels.uk/strategy-template): Template for creating strategies.
- [Weeknotes Template](https://tools.thechels.uk/templates/weeknotes): Markdown front matter for weeknotes.

## Feeds and search

- [SecOps news](https://secops.thechels.uk/): Security operations news, as one page and feed.
- [Cheltenham news](https://cheltenham-od.uk/cheltenham-news): Local news from Cheltenham sources, as one page and feed.
- [Search](https://search.thechels.uk): Search many engines and sites using bangs and shortcodes.

## Apps

- [EngMan](https://engman.thechels.uk): Coaching card decks for engineering managers.
- [Hiyd](https://hiyd.uk): Draft Markdown posts and publish them to a Jekyll site on GitHub.
- [Lansdown Foundry](https://lansdownfoundry.thechels.uk): Draw and export your own fonts.
- [Mltply](https://mltply.thechels.uk): A free maths app with printable workbooks.
- [Opiuml](https://opiuml.thechels.uk): A podcast player.
- [ShortKeys](https://shortkeys.thechels.uk): Stop typing the same thing twice.
- [Tomoz](https://tomoz.thechels.uk): See tomorrow's schedule at a glance.
- [Unsettled](https://unsettled.thechels.uk): An impossible escape game.

## Elsewhere

- [thechels.uk](https://thechels.uk): Writing and everything else.
- [Links](https://links.thechels.uk): All my links, socials and resources.
- [Cheltenham Open Data](https://cheltenham-od.uk): Local data for Cheltenham and Gloucestershire.
- [NetNewsWire themes](https://themes-nnw.thechels.uk): Themes for the NetNewsWire feed reader.
- [BOINC team](https://boinc.thechels.uk): Donate spare computing power to medical research.
- [Nuchronic](https://nuchronic.uk): A Hacker News-style feed for the chronically ill indie web.

## Optional

- [Full sitemap](https://tools.thechels.uk/sitemap.xml): every page on the site
- [SBOM](https://tools.thechels.uk/sbom): every library, gem and action, with versions and licences
- [Source on GitHub](https://github.com/thechelsuk/uk.thechels.tools): how the tools are built