More than a hundred everyday tools: PDFs, images, text, data, calculators, dice and currency.
Scored across 133 tools
Most tools have distinct purposes, but there are several overlapping clusters: image_compressor vs compress_to_size vs image_resizer vs bulk_image_resizer; pdf_rotate vs pdf_reorder vs pdf_split; contrast_checker vs contrast_fixer vs contrast_grid; and random_picker vs wheel_of_names vs random_team_generator. Descriptions clarify many boundaries, but with 133 tools an agent can still easily choose a near-duplicate.
All names use lower snake_case, which is consistent, but the naming patterns are mixed: many are noun phrases (pdf_merge, base64), some are verb phrases (remove_line_breaks, share_file), and a few are question-like (what_is_my_ip). It remains readable, but there is no uniform verb_noun convention.
133 tools is far beyond a manageable set for a single MCP server, regardless of how broad the utility-site purpose is. The surface is so large that tool selection and discovery become burdensome, and many related tools could be consolidated into parameterized operations.
Coverage is very broad across PDFs, images, text, calculators, networking, and sharing, so most common utility tasks are represented. Some gaps remain, such as archive/zip handling, audio tools, and deeper integrated workflows, but agents can work around them with the existing surface.
An age calculator: your exact age in years, months and days, from a date of birth. A HelpySelf tool (helpyself.com).
Inputs: birth (required), asOf.
Find the app background image size that survives on every phone and tablet. A HelpySelf tool (helpyself.com).
Inputs: width (required), height (required), mode, kinds, +3 more.
The full ASCII table, with the control codes explained rather than left blank. A HelpySelf tool (helpyself.com).
Inputs: search, includeExtended.
Find the aspect ratio of any size, or the width or height that keeps a ratio. A HelpySelf tool (helpyself.com).
Inputs: ratio, width, height, nearestWithinPercent.
Auto redact PDF files: it finds the personal information, you confirm, the words are deleted. A HelpySelf tool (helpyself.com).
Inputs: text (required), language.
A mean median mode calculator, with standard deviation and the spread. A HelpySelf tool (helpyself.com).
Inputs: numbers (required).
AVIF to JPG, and JPG to AVIF — the format that halves a photograph. A HelpySelf tool (helpyself.com).
Inputs: data (required), name, type, format, +2 more.
Remove the background from an image — solid backgrounds go transparent, in your browser. A HelpySelf tool (helpyself.com).
Inputs: data (required), type (required), name, reach, +3 more.
A barcode generator for EAN-13, UPC-A, EAN-8 and Code 128 — check digit included. A HelpySelf tool (helpyself.com).
Inputs: text (required), scale, height, showText, +1 more.
A barcode scanner online — read a barcode or QR code from a photo or screenshot. A HelpySelf tool (helpyself.com).
Inputs: data (required), type.
Base64 encode and decode text instantly, with full Unicode support. A HelpySelf tool (helpyself.com).
Inputs: text (required), action, urlSafe.
A binary translator both ways — binary to text, text to binary, hex and decimal too. A HelpySelf tool (helpyself.com).
Inputs: input (required), readAs.
A BMI calculator in metric or imperial, worked out in your browser. A HelpySelf tool (helpyself.com).
Inputs: weight (required), feet, units, height, +1 more.
A body fat calculator that works from a tape measure, using the US Navy method. A HelpySelf tool (helpyself.com).
Inputs: sex (required), neck (required), waist (required), height (required), +3 more.
Type in the players, get a knockout bracket, and share one link everyone follows as the rounds are played. A HelpySelf tool (helpyself.com).
Inputs: title (required), players (required), draw.
A braille translator both ways — text to Grade 1 braille, and braille back to text. A HelpySelf tool (helpyself.com).
Inputs: text (required), direction.
A bulk image resizer for a whole folder at once, in your browser. A HelpySelf tool (helpyself.com).
Inputs: data (required), type (required), maxEdge (required), name, +2 more.
Count forward or back a number of working days and see where you land. A HelpySelf tool (helpyself.com).
Inputs: days (required), startDate (required), holidays.
Work out how many calories you burn a day, and what to eat for a goal. A HelpySelf tool (helpyself.com).
Inputs: age (required), sex (required), heightCm (required), weightKg (required), +1 more.
A text case converter: camelCase, snake_case, kebab-case and more. A HelpySelf tool (helpyself.com).
Inputs: text (required), target.
A checksum verifier: paste the published SHA-256 and check your download matches. A HelpySelf tool (helpyself.com).
Inputs: data (required), expected (required).
A coin toss you can trust — heads or tails, from real randomness. A HelpySelf tool (helpyself.com).
Inputs: count, headsPercent.
A colour converter: HEX to RGB, RGB to HEX, and either to HSL. A HelpySelf tool (helpyself.com).
Inputs: color (required).
Compare two lists and see what is only in one, only in the other, and in both. A HelpySelf tool (helpyself.com).
Inputs: listA (required), listB (required), trim, ignoreCase, +1 more.
A compound interest calculator with regular deposits and any compounding frequency. A HelpySelf tool (helpyself.com).
Inputs: rate (required), years (required), amount (required), frequency, +2 more.
Compress image to 100KB, 1MB, or whatever exact size the form demands. A HelpySelf tool (helpyself.com).
Inputs: data (required), type (required), targetKb (required), name.
A colour contrast checker for WCAG accessibility levels. A HelpySelf tool (helpyself.com).
Inputs: background (required), foreground (required), target, suggest.
A colour contrast fixer — the nearest accessible colour that passes WCAG AA. A HelpySelf tool (helpyself.com).
Inputs: background (required), foreground (required), level, adjust.
A contrast grid for your whole palette — every pairing checked against WCAG. A HelpySelf tool (helpyself.com).
Inputs: palette (required), level.
A cookie checker that shows what a website sets, and whether Secure, HttpOnly and SameSite are on. A HelpySelf tool (helpyself.com).
Inputs: url (required).
A 5 minute timer, a 10 minute timer, or any timer online — with an alarm. A HelpySelf tool (helpyself.com).
Inputs: hours, minutes, seconds.
Read a cron expression in plain English, and see exactly when it will next run. A HelpySelf tool (helpyself.com).
Inputs: expression (required), count, timezone.
CSV to JSON and back — turn a spreadsheet export into clean, readable JSON. A HelpySelf tool (helpyself.com).
Inputs: text (required), trim, shape, typed, +4 more.
An exchange rate calculator using the European Central Bank's official daily rate A HelpySelf tool (helpyself.com).
Inputs: amount (required), toCurrency (required), fromCurrency (required).
How many days between two dates — plus weeks, months and working days. A HelpySelf tool (helpyself.com).
Inputs: toDate (required), fromDate (required).
How many days until Christmas — counted in sleeps, not hours, and right across time zones. A HelpySelf tool (helpyself.com).
Inputs: day, month, today.
Check whether a Steam game has been delisted — and when it went A HelpySelf tool (helpyself.com).
Inputs: game (required).
A dice roller for any number of sides, rolled in your browser. A HelpySelf tool (helpyself.com).
Inputs: dice, sides, modifier.
Dog years to human years by size, the way vets count them, not times seven. A HelpySelf tool (helpyself.com).
Inputs: years (required), size, months.
Remove duplicate lines, blanks and stray spaces from a list in one pass. A HelpySelf tool (helpyself.com).
Inputs: text (required), keep, sort, trimLines, +3 more.
Collect your guests' photos in one album: print a QR code, they scan it and add theirs. Weddings, birthdays, parties. A HelpySelf tool (helpyself.com).
Inputs: intro, order, title, token, +4 more.
Convert an Excel spreadsheet to PDF in your browser, with its dates, totals and column widths intact. A HelpySelf tool (helpyself.com).
Inputs: data (required), locale, sheets, pageSize, +1 more.
See what your photos reveal, then remove the EXIF data — without uploading them. A HelpySelf tool (helpyself.com).
Inputs: data (required), name, action, keepOrientation, +1 more.
A favicon generator that turns any image into a complete set. A HelpySelf tool (helpyself.com).
Inputs: data (required), type (required), name.
Propose a few times, send one link, see when everybody can make it A HelpySelf tool (helpyself.com).
Inputs: title (required), options (required), days, note, +2 more.
A fraction calculator for adding, subtracting, multiplying and dividing — exactly. A HelpySelf tool (helpyself.com).
Inputs: operator (required), fractionA (required), fractionB (required).
A fuel cost calculator for any drive — your units, your currency, split however you like. A HelpySelf tool (helpyself.com).
Inputs: price (required), distance (required), consumption (required), people, +4 more.
Know what you own, share the list, and stop buying games you already have. A HelpySelf tool (helpyself.com).
Inputs: name (required), note, shared, console, +1 more.
Compress a GIF by the only three things a GIF has — frames, colours and size. Nothing uploaded. A HelpySelf tool (helpyself.com).
Inputs: gif (required), name, scale, colours, +1 more.
A GPA calculator on the 4.0 scale, weighted by the credits each course is worth. A HelpySelf tool (helpyself.com).
Inputs: courses (required).
A CSS gradient generator for linear, radial and conic — copy the code straight out. A HelpySelf tool (helpyself.com).
Inputs: stops (required), type, angle, shape, +1 more.
A hash generator for SHA-1, SHA-256, SHA-384 and SHA-512. A HelpySelf tool (helpyself.com).
Inputs: text (required), algorithms.
Every HTTP status code, what it means and when to send it — with the RFC that defines it. A HelpySelf tool (helpyself.com).
Inputs: code, query, language.
An IBAN checker that validates the country, the length and the check digits — and says which failed. A HelpySelf tool (helpyself.com).
Inputs: iban (required).
Compress a JPEG, PNG or WebP to a smaller file, choosing quality or a target size. AVIF, HEIC, TIFF and BMP are browser-only and not accepted here. A HelpySelf tool (helpyself.com).
Inputs: data (required), type (required), name, format, +2 more.
Convert between JPEG, PNG and WebP, one file or many, with transparency flattened onto a colour you choose. HEIC and AVIF are browser-only and not accepted here. A HelpySelf tool (helpyself.com).
Inputs: data (required), type (required), target (required), name, +2 more.
Crop image online — drag the box, or type an exact size in pixels. A HelpySelf tool (helpyself.com).
Inputs: x (required), y (required), data (required), type (required), +5 more.
A photo resizer for any size — JPEG, PNG, WebP or an iPhone HEIC. A HelpySelf tool (helpyself.com).
Inputs: data (required), type (required), mode, name, +7 more.
JPG to PDF and PNG to PDF — photos to PDF, in the order you choose. A HelpySelf tool (helpyself.com).
Inputs: images (required), margin, pageSize, orientation.
Image to text: read the words out of a photo — receipts, screenshots, handwriting. A HelpySelf tool (helpyself.com).
Inputs: data, mode, type, fileId, +1 more.
Copy an invisible character in one press — or paste text to find the hidden ones in it. A HelpySelf tool (helpyself.com).
Inputs: text, spaces, character.
A free invoice generator that makes a real PDF — no watermark, no sign-up. A HelpySelf tool (helpyself.com).
Inputs: to (required), from (required), items (required), issueDate (required), +9 more.
A JSON formatter that validates and beautifies instantly — or minifies. A HelpySelf tool (helpyself.com).
Inputs: json (required), action, indent, sortKeys.
A JWT decoder that inspects JSON Web Tokens safely. A HelpySelf tool (helpyself.com).
Inputs: token (required).
A loan calculator for the monthly payment, and how much of it is interest. A HelpySelf tool (helpyself.com).
Inputs: rate (required), years (required), amount (required).
A lorem ipsum generator for placeholder text in mockups and layouts. A HelpySelf tool (helpyself.com).
Inputs: unit, count, startWithLorem.
A MAC address lookup that names the manufacturer — and says when there isn't one. A HelpySelf tool (helpyself.com).
Inputs: address (required).
Turn Markdown into clean HTML, with a preview you can trust. A HelpySelf tool (helpyself.com).
Inputs: text (required), breaks, allowHtml, headingIds.
A microphone test that answers the real question — will they hear me? A HelpySelf tool (helpyself.com).
Inputs: samples (required).
A morse code translator both ways — text to morse code, and morse code to text. A HelpySelf tool (helpyself.com).
Inputs: text (required), direction.
A one rep max calculator that shows the training percentages too, not just the number. A HelpySelf tool (helpyself.com).
Inputs: reps (required), weight (required), formula.
A running pace calculator: give any two of distance, time and pace to get the third. A HelpySelf tool (helpyself.com).
Inputs: unit, distance, timeSeconds, paceSecondsPerUnit.
A password generator for strong random passwords, in your browser. A HelpySelf tool (helpyself.com).
Inputs: count, digits, length, symbols, +3 more.
Reduce PDF size without turning the text into a picture. A HelpySelf tool (helpyself.com).
Inputs: data (required), name, level, structureOnly.
Merge PDF files into one document. A HelpySelf tool (helpyself.com).
Inputs: files (required).
Add page numbers to a PDF — starting where you want, skipping the pages that should stay clean. A HelpySelf tool (helpyself.com).
Inputs: data (required), from, name, size, +4 more.
Rearrange, rotate and delete pages from a PDF, then save it back out. A HelpySelf tool (helpyself.com).
Inputs: data (required), name, order, rotations.
Rotate PDF pages the right way up — sideways or upside-down. A HelpySelf tool (helpyself.com).
Inputs: data (required), name, only, angle, +1 more.
Extract pages from a PDF or split it into separate files. A HelpySelf tool (helpyself.com).
Inputs: data (required), mode, name, pages.
Every table in the PDF becomes a sheet, and every figure arrives as a number you can actually add up. A HelpySelf tool (helpyself.com).
Inputs: data (required), joinPages, sheetName, includeText.
PDF to JPG, PDF to PNG — every page as an image, at the size you need. A HelpySelf tool (helpyself.com).
Inputs: data (required), name, size, type, +3 more.
Convert PDF to Word — tables, pictures and all — in your browser A HelpySelf tool (helpyself.com).
Inputs: data (required), keepPageBreaks.
A percentage increase calculator — and the other three sums people mean. A HelpySelf tool (helpyself.com).
Inputs: a (required), b (required), mode (required).
Share photos online as one link or QR code: a shared photo album with its own layout, pages and password. A HelpySelf tool (helpyself.com).
Inputs: intro, title, token, action, +9 more.
Grams of flour, water, salt and yeast for any number of pizzas, by bakers' percentages. A HelpySelf tool (helpyself.com).
Inputs: oil, salt, balls, style, +5 more.
A due date calculator that also tells you how many weeks you are today A HelpySelf tool (helpyself.com).
Inputs: lmpDate (required), asOfDate, cycleLength.
Open a Microsoft Publisher .pub file and get its text and photographs back as a PDF. The page reproduces the original layout; this endpoint returns the text in reading order, not the design. A HelpySelf tool (helpyself.com).
Inputs: data (required), name, page, pictures.
A QR code generator for any link or text — download it as SVG or PNG. A HelpySelf tool (helpyself.com).
Inputs: text (required), dark, size, light, +2 more.
A random number generator for any range, in your browser. A HelpySelf tool (helpyself.com).
Inputs: max, min, count, sorted, +1 more.
A random picker for a list of names, drawn in your browser. A HelpySelf tool (helpyself.com).
Inputs: items (required), count, shuffleAll.
A random team generator — paste a list of names and split it into fair teams. A HelpySelf tool (helpyself.com).
Inputs: names (required), mode, count.
A ratio calculator: reduce to lowest terms, or find the missing number. A HelpySelf tool (helpyself.com).
Inputs: left (required), right (required), scaleTo.
Readability score for any text — Flesch–Kincaid, Gunning fog index and more. A HelpySelf tool (helpyself.com).
Inputs: text (required).
A regex explainer: paste a pattern and read what every part of it does, in English. A HelpySelf tool (helpyself.com).
Inputs: pattern (required).
A regex tester for regular expressions, run safely against your own text. A HelpySelf tool (helpyself.com).
Inputs: text (required), pattern (required), flags.
Remove line breaks from text that was hard-wrapped, and keep the paragraphs. A HelpySelf tool (helpyself.com).
Inputs: text (required), mode, joinWith, keepLists, +1 more.
Request files with a link — they upload to you, with no account and no ads. A HelpySelf tool (helpyself.com).
Inputs: days, maxFiles.
A Roman numeral converter — numbers to numerals, and numerals back to numbers. A HelpySelf tool (helpyself.com).
Inputs: numeral (required).
A salary calculator that goes hourly to annual and back — the same pay written every way, before tax. A HelpySelf tool (helpyself.com).
Inputs: amount (required), period (required), daysPerWeek, hoursPerWeek, +1 more.
Record your screen in the browser — nothing is uploaded anywhere A HelpySelf tool (helpyself.com).
Inputs: width (required), height (required), quality, seconds, +2 more.
Type in the names, keep couples apart, and give everyone a private link that shows only who they drew. A HelpySelf tool (helpyself.com).
Inputs: title (required), people (required), note, budget, +3 more.
Send a password securely by link that self-destructs after one read. A HelpySelf tool (helpyself.com).
Inputs: iv (required), data (required), salt, keyProof, +1 more.
A signature maker: draw or type yours, saved with a transparent background. A HelpySelf tool (helpyself.com).
Inputs: strokes (required), trim, colour, smooth, +3 more.
A sleep calculator that works backwards from when you have to be up. A HelpySelf tool (helpyself.com).
Inputs: time (required), timeIs, cycleMinutes, fallAsleepMinutes.
A slug generator that turns any title into a clean URL slug. A HelpySelf tool (helpyself.com).
Inputs: text (required), lowercase, maxLength, separator, +1 more.
A split rent calculator for housemates: by room size, by income or evenly, and it always adds up to the rent. A HelpySelf tool (helpyself.com).
Inputs: rent (required), people (required), days, method, +2 more.
An SQL formatter for 16 dialects — paste unreadable SQL, get it laid out, nothing uploaded. A HelpySelf tool (helpyself.com).
Inputs: sql (required), indent, dialect, keywordCase, +1 more.
One link, on your own site or sent — vendors pick their own stall A HelpySelf tool (helpyself.com).
Inputs: date (required), title (required), gap, note, +14 more.
A subnet calculator that gets /31 and /32 right, which most do not. A HelpySelf tool (helpyself.com).
Inputs: network (required).
An SVG minifier that strips editor clutter and scripts, without touching the artwork. A HelpySelf tool (helpyself.com).
Inputs: text (required), precision, removeScripts, removeComments, +6 more.
A diff checker for text — compare two versions and see exactly what changed, line by line. A HelpySelf tool (helpyself.com).
Inputs: changed (required), original (required), ignoreCase, ignoreWhitespace.
A time card calculator for hours worked, breaks and overtime across a week. A HelpySelf tool (helpyself.com).
Inputs: shifts (required), rate, overtimeAfter, overtimeMultiplier.
A Unix timestamp converter — timestamps to dates, and dates back to timestamps. A HelpySelf tool (helpyself.com).
Inputs: value (required), timeZone.
A time zone converter and world clock — one time, every city at once. A HelpySelf tool (helpyself.com).
Inputs: date (required), time (required), toZones (required), fromZone (required).
Work out the tip and split the bill into amounts people can actually pay. A HelpySelf tool (helpyself.com).
Inputs: bill (required), people (required), tipPercent (required), roundTo, +1 more.
A typing speed test that shows both your raw and your real WPM. A HelpySelf tool (helpyself.com).
Inputs: typed (required), target (required), elapsedMs (required), includeCharacters.
kg to lbs, mm to inches, cm to feet — every everyday unit, in your browser. A HelpySelf tool (helpyself.com).
Inputs: to (required), from (required), value, category.
An upside down text generator — flip writing over, and flip it back again. A HelpySelf tool (helpyself.com).
Inputs: text (required), direction.
A URL encoder and decoder for links and query strings, percent-encoded properly. A HelpySelf tool (helpyself.com).
Inputs: text (required), mode, action.
A UTM builder for campaign URLs, with the tagging mistakes caught as you type. A HelpySelf tool (helpyself.com).
Inputs: url (required), id, term, medium, +4 more.
A UUID generator for random v4 identifiers, instantly. A HelpySelf tool (helpyself.com).
Inputs: count, uppercase.
Add VAT to a price, or take it back out of one — the sum people get wrong. A HelpySelf tool (helpyself.com).
Inputs: rate (required), amount (required), direction (required).
Upload your videos once, then share your whole channel or just one video with a link. No ads, no algorithm. A HelpySelf tool (helpyself.com).
Inputs: name, about, title, token, +10 more.
Convert video to GIF — MP4 to GIF in your browser, with the frames you choose. A HelpySelf tool (helpyself.com).
Inputs: data (required), fps, width, seconds.
Add a watermark to a PDF — DRAFT, CONFIDENTIAL, or a client's name across every page. A HelpySelf tool (helpyself.com).
Inputs: data (required), text (required), name, size, +3 more.
A webcam test that tells you what the other end will actually see A HelpySelf tool (helpyself.com).
Inputs: width (required), height (required), pixels, frameRate, +3 more.
What's my IP — the address the internet sees, and where it thinks you are. A HelpySelf tool (helpyself.com).
Inputs: no named parameters.
A spinning wheel of names — paste a list, spin, and get one fair winner. A HelpySelf tool (helpyself.com).
Inputs: names (required), draws, removeWinner.
A word counter and character counter, updating as you type. A HelpySelf tool (helpyself.com).
Inputs: text (required).
Convert a Word document to PDF in your browser — nothing is uploaded. A HelpySelf tool (helpyself.com).
Inputs: data (required), pageSize.
An XML formatter that indents, minifies and checks a document in your browser. A HelpySelf tool (helpyself.com).
Inputs: xml (required), mode, indent, keepComments.
Convert a config file to JSON, or JSON back to readable YAML. A HelpySelf tool (helpyself.com).
Inputs: text (required), indent, sortKeys, direction.
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26 deterministic tools: PDF, image, QR, CSV/Excel, HTML to PDF, DNS/RDAP, FX rates, time zones.
26 deterministic tools: PDF, image, QR, CSV/Excel, HTML to PDF, DNS/RDAP, FX rates, time zones.
Everyday calculators and converters for AI assistants: units, dates, percentages, text, JSON.
Tools for charts, PDFs, tables, webpages, temporary sharing, webhooks, forms, and feeds.
Add one secure layer between your agents and this server.
