HARNESTS
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Pay-per-use AI tools — £1 per job, no subscription

Harnests is an AI tools shop with 50 one-shot jobs across 11 categories — Fun & Viral, Creator Tools, Small Biz, Social Media, Writing Helpers, Business Ops, Software Engineering, Sales & CRM, Recruiting & HR, Real Estate, and Education. Every job is £1 per use. No monthly fee. No login wall. Pick a job, fill the inputs, paste the output where you need it.

Built for the moments you need AI for one specific thing — a LinkedIn headline, a YouTube title, a cold email, a wedding speech outline, an OKR draft, a listing description — without signing up for yet another monthly subscription.

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JSON Prettify + Sort Keys

Paste messy JSON and get it back formatted with 2-space indents and keys sorted alphabetically at every level.

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A quid. Done in seconds. No subscriptions. No strings.

🎲Fun & Viral10See all ›

Roast My Hobby
£1.00in seconds
Roast My Hobby
A witty 100-word roast of your hobby — funny enough to share, kind enough to keep.
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"About Me" for Dating Apps
£1.00in seconds
"About Me" for Dating Apps
Two distinct "About Me" bios for your dating profile — pick the one that sounds most like you.
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Hinge Prompt Answers
£1.00in seconds
Hinge Prompt Answers
5 answers to a Hinge prompt, calibrated to exactly how funny you want to be.
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Band Name Generator
£1.00in seconds
Band Name Generator
20 band names from two seed words — spanning genres, all believable on a festival poster.
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Pun Cascade
£1.00in seconds
Pun Cascade
Ten groan-worthy pun lines built from a single keyword, ranked worst to best.
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Quirky Unit Converter
£1.00in seconds
Quirky Unit Converter
10 conversions of any measurement — 3 standard units and 7 absurd ones like double-decker buses and blue whales.
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Shakespeare-Style Insult Line
£1.00in seconds
Shakespeare-Style Insult Line
One punchy Shakespearean insult line built from two character traits.
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Fantasy Loot: Name + Flavour Text
£1.00in seconds
Fantasy Loot: Name + Flavour Text
A single RPG-ready item name and flavour text line for any item type and adjective.
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Best-Man Speech Skeleton
£1.00in seconds
Best-Man Speech Skeleton
A five-beat speech script outline with a ready-to-fill joke slot for any best man.
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Pet Name Ideas
£1.00in seconds
Pet Name Ideas
Fifteen name ideas for a new pet, matched to species, breed, and personality vibe.
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🎬Creator Tools2See all ›

TikTok On-Screen Text Pack
£1.00in seconds
TikTok On-Screen Text Pack
10 on-screen text lines for your TikTok — hook through payoff.
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YouTube Description Writer
£1.00in seconds
YouTube Description Writer
A full YouTube description with fold hook, summary paragraph, and timestamp scaffold.
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🏪Small Biz7See all ›

Calendar Invite Blurb
£1.00in seconds
Calendar Invite Blurb
A scannable calendar invite blurb — one-sentence purpose, tight agenda bullets, and a "bring" line.
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Startup Name Sanity Check
£1.00in seconds
Startup Name Sanity Check
A five-point gut-check on your startup name covering puns, mishearings, and brand clashes.
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Slogan Pack
£1.00in seconds
Slogan Pack
10 punchy one-line slogans for your product, mixing benefit, contrast, and command styles.
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Feature → Benefit Rewriter
£1.00in seconds
Feature → Benefit Rewriter
Converts your dry feature list into benefit-led lines that answer "so what?" for each item.
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Return Policy Paragraph
£1.00in seconds
Return Policy Paragraph
A ready-to-paste return policy paragraph — plain English, no legalese, tailored to your shop.
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Job Posting Opener
£1.00in seconds
Job Posting Opener
3 opening-paragraph variants for your job ad — human, inclusive, nothing that sounds like HR boilerplate.
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App Store Subtitle + Promo Text
£1.00in seconds
App Store Subtitle + Promo Text
Generates an Apple App Store subtitle (≤30 chars) and promo text (≤170 chars) from your feature bullets.
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💬Social Media5See all ›

X Community Note Style
£1.00in seconds
X Community Note Style
A neutral, fact-check-style community note draft under 280 chars for any claim.
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Discord Channel Welcome
£1.00in seconds
Discord Channel Welcome
A pinned welcome message with quick-access links that sets the tone for a Discord channel.
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Mastodon Bio
£1.00in seconds
Mastodon Bio
A 500-character Mastodon bio with hashtag suggestions tailored to your niche and tone.
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Strava Post Blurb
£1.00in seconds
Strava Post Blurb
Three caption variants for your Strava activity that go beyond the stats and say something worth reading.
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Tweet / X Post Pack
£1.00in seconds
Tweet / X Post Pack
5 tweet drafts on your topic at the spice level you choose.
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✍️Writing Helpers17See all ›

Out-of-Office Message
£1.00in seconds
Out-of-Office Message
Three OOO message variants — professional, warm, and cheeky — each under 50 words.
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/my-title
Slug From Title
£1.00in seconds
Slug From Title
5 URL-safe slug options for any title — safest literal first, punchier variants after.
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Reading Time Estimator
£1.00in seconds
Reading Time Estimator
Paste any text and get word count, character count, reading time, and a one-sentence summary.
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Professionalize This
£1.00in seconds
Professionalize This
Turn a rude, ranty, or half-formed draft into a polished message you can actually send.
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Make It Shorter
£1.00in seconds
Make It Shorter
Get three progressively tighter versions of your text — trimmed, tight, and brutal.
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Paragraph Splitter
£1.00in seconds
Paragraph Splitter
Break a wall of text into 3-5 clean, readable paragraphs without changing a word.
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TL;DR in One Line
£1.00in seconds
TL;DR in One Line
One brutally short summary line — ≤140 chars — that captures the actual point of any text.
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Auto-Reply Variants
£1.00in seconds
Auto-Reply Variants
3 ready-to-paste auto-reply variants — support, sales, and personal — each ≤50 words.
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Privacy Policy — Plain English
£1.00in seconds
Privacy Policy — Plain English
10 plain-English bullets summarising what a privacy policy actually says about your data.
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515
ELI5 vs ELI15
£1.00in seconds
ELI5 vs ELI15
Two explanations of any topic — one for a five-year-old, one for a fifteen-year-old.
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ABC
Mnemonic Maker
£1.00in seconds
Mnemonic Maker
Three first-letter mnemonics for any list you need to memorise, with a word-by-word breakdown.
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QA
Study Flashcard Q/A
£1.00in seconds
Study Flashcard Q/A
Paste your notes and get up to 20 atomic Q&A flashcards, numbered and ready to copy into Anki.
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Recipe Scaler
£1.00in seconds
Recipe Scaler
Scaled ingredient list for any recipe, with a note on anything that does not scale linearly.
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Cron-to-English
£1.00in seconds
Cron-to-English
Paste a cron expression, get a plain-English breakdown of when it fires and what to watch out for.
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Regex Explainer (Light)
£1.00in seconds
Regex Explainer (Light)
A stepwise plain-English breakdown of any regex pattern, token by token.
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JSON Prettify + Sort Keys
£1.00in seconds
JSON Prettify + Sort Keys
Paste messy JSON and get it back formatted with 2-space indents and keys sorted alphabetically at every level.
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▶ Get it
Wedding Toast Opener + Joke Stub
£1.00in seconds
Wedding Toast Opener + Joke Stub
Three wedding toast openings with a built-in joke stub matched to the couple's vibe.
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🏢Business Ops5See all ›

Procurement Justification Draft
£1.00in seconds
Procurement Justification Draft
A 200-word justification memo for purchasing a tool, formatted to drop into a procurement form.
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Escalation Response Draft
£1.00in seconds
Escalation Response Draft
A measured email reply to an escalation — acknowledges, summarises, lays out the next step.
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Change Request Summary
£1.00in seconds
Change Request Summary
A one-paragraph change request summary with scope, impact, and recommended decision.
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Investor Monthly Update
£1.00in seconds
Investor Monthly Update
A monthly investor update — KPIs, highlights, lowlights, asks.
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Waitlist Welcome Sequence
£1.00in seconds
Waitlist Welcome Sequence
3 emails for your waitlist: confirmation, build-anticipation, launch.
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💻Software Engineering3See all ›

Legacy Code Summary
£1.00in seconds
Legacy Code Summary
An onboarding-friendly summary of a legacy file — what it does, who calls it, where the dragons are.
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Release Notes Builder
£1.00in seconds
Release Notes Builder
Customer-facing release notes from your changelog or PR list.
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Error Log Root Cause Analyzer
£1.00in seconds
Error Log Root Cause Analyzer
An analysis of your error log — likely root cause, ranked hypotheses, next debugging steps.
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🧑‍💼Recruiting & HR1See all ›

Career Ladder Definition
£1.00in seconds
Career Ladder Definition
A career ladder for a function — levels with scope, autonomy, impact, evidence signals.
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