The best free tools beyond ours, hand-picked and honestly reviewed.
Our own tools run entirely in your browser: private, instant, no sign-up. But some jobs need more than a client-side tool, so this directory collects the 93 external tools we actually recommend alongside ours. Every listing is an editorial pick with honest pros and cons, the pricing reality, and our in-browser alternatives when you would rather not leave. No paid placements, no affiliate links.
A huge suite of free PDF utilities, plus a free desktop app.
ExternalPolished all-in-one PDF toolbox with mobile and desktop apps.
ExternalSimple, friendly PDF tools with a generous guided flow.
ExternalThe PDF editor that punches above its weight on the free tier.
ExternalA sweet-toothed pile of PDF converters in one place.
The gold standard for compressing one image really well.
ExternalA Photoshop-class editor that runs in a browser tab.
ExternalOne-click AI background removal that mostly just works.
ExternalQuick photo editing with a friendlier face than pro tools.
ExternalBatch image resizing that happens entirely on your machine.
ExternalThe workhorse for making, editing and shrinking GIFs.
ExternalDrag, drop, done: smart lossy compression for web images.
ExternalPaint over an object and watch it disappear from the photo.
ExternalGenerates romantic scenes from photos
ExternalRestores natural skin texture and sharpens facial clarity
ExternalEdit photos with AI-powered tools online
Guardrails, hooks, and subagent patterns that keep AI coding assistants on the rails.
ExternalVerified maker55 free, privacy-first browser tools for developers and everyday tasks
ExternalThe regex playground that explains every token as you type.
ExternalDecode and verify JSON Web Tokens in one paste.
ExternalThe quick and simple editor for cron schedule expressions.
ExternalSee your JSON as an explorable graph instead of a wall of braces.
ExternalA fast, open source API client that lives in a tab.
ExternalTurn a code snippet into a beautiful shareable image.
ExternalPaste a shell one-liner, get every flag explained.
ExternalEvery API doc set in one fast, offline-capable search.
ExternalThe browser support table the whole web dev world checks.
ExternalA linter that catches your shell script bugs before prod does.
ExternalFind out what that npm install really costs your users.
ExternalPaste one format, get another: JSON to TypeScript and 30 more.
The hand-drawn whiteboard the whole internet sketches on.
ExternalA very fast infinite canvas for thinking out loud.
ExternalTap the spacebar until the palette feels right.
ExternalThe free font library behind half the modern web.
ExternalGenerate blobs, waves and mesh backgrounds as clean SVG.
ExternalA curated feed of four-color palettes that just work.
ExternalSerious diagramming, free forever, saved wherever you choose.
Highlights the sentences your readers will trip over.
ExternalGrammar and style checking in dozens of languages.
ExternalThe translator people switch to for natural-sounding output.
ExternalA proper in-browser Markdown editor that syncs where you say.
ExternalRhymes, near rhymes, synonyms and syllable counts on tap.
ExternalParaphrase a clunky sentence into several better options.
Calculates compound interest for investments
ExternalVerified makerFinancial calculators and formulas for savings, loans, and investments
ExternalVerified makerEvaluate fixed-price projects by combining contract value, external costs, estimated work, availability, minimum rate, a
ExternalVerified makerResizes, converts, compresses, and transforms images and PDF files.
ExternalVerified makerCalculates birth-date pattern using Wood, Fire, Earth, Metal, and Water elements
ExternalType a question, get computed knowledge back.
ExternalThe graphing calculator that made math class beautiful.
ExternalInteractive geometry, algebra and 3D in one classroom suite.
ExternalThe long-standing reference for live exchange rates.
ExternalTime zones, meeting planners and calendars for the whole world.
ExternalConvert between file formats most tools have never heard of.
ExternalCheck CPU, GPU, and RAM performance instantly
ExternalEmbed 56 responsive calculators with one script tag
ExternalCalculates percentages, increases, and decreases.
ExternalPublic catalog of online calculators with formulas and examples
ExternalCalculates U.S. Army waist-to-height ratio with .550 boundary
ExternalCompares recipe profitability with break-even and expected-value results.
ExternalConverts hours, minutes, and seconds to decimal hours and minutes.
ExternalFree online tools for image, text, developer, and audio tasks
ExternalConverts cryptocurrency to real consumer electronics prices
ExternalCalculates compound interest for ISA, SIPP, and savings
ExternalCited research-peptide library, plus reconstitution calculator and tracker. Free library; paid tools 4.99/mo.
Find out which data breaches leaked your email address.
ExternalScan a file or URL against dozens of antivirus engines at once.
ExternalThe letter grade your TLS configuration deserves.
ExternalGrade your site on the HTTP headers that stop common attacks.
ExternalWatch your DNS change propagate across the planet.
ExternalThe diagnostic bench for everything email and DNS.
ExternalSearch every TLS certificate ever logged for a domain.
ExternalSee what any website can learn from your connection.
ExternalDetect confusable Unicode characters that imitate familiar Latin letters.
A real waveform audio editor with zero install and zero upload.
ExternalSplit a song into vocals and instrumental with AI.
ExternalTrim a ringtone or clip out of any audio file in seconds.
ExternalCut, crop and rotate a video without opening an editor.
Estimates fabric consumption, production cost, and pricing for apparel manufacturing
ExternalVerified makerDownload YouTube thumbnails in HD, 4K, and all sizes instantly. Free YouTube thumbnail grabber for creators. No signup r
ExternalVerified makerFree online calculators and utility tools
ExternalA pomodoro timer with just enough task tracking.
ExternalCollaborative docs where even the server cannot read your work.
ExternalSend big files with end-to-end encryption and a short fuse.
ExternalBrowser-to-browser file transfer with no server in the middle.
ExternalAnalyzes real estate affordability and costs
ExternalFree online tools and calculators for various tasks
Turn any table into any other kind of table.
ExternalPrototype your jq filter before you put it in a script.
ExternalRealistic fake data, a thousand rows at a time.
ExternalUnusual chart types from a CSV, no spreadsheet wizardry needed.
ExternalOpen a .sqlite file in the browser without uploading it.
ExternalLook up NYC parking or camera ticket dismissal rates from 27 million public hearing outcomes.
Our own tools run entirely in your browser. The directory is the other half of the answer: 93 hand-picked external tools we genuinely recommend when a job goes beyond what a client-side tool can do. Each listing is a short honest review with pros, cons and our in-browser alternatives.
Editorial picks only. A tool has to be genuinely excellent, free to use in the browser for its core job, and usable without a forced sign-up. We verify every link is live before publishing. Nobody pays to be here.
No. They are plain links with no tracking parameters. Listings are editorial recommendations, not paid placements.
Yes. Use the submit form at yourhack.ai/submit. Submitting is free, every submission is opened and actually tested, and only tools that meet the editorial bar join this shelf.
A listed maker who put a link back to yourhack.ai on their own site. An automatic check confirms the link, and the listing then earns a dofollow credit link, a Verified maker mark and the top of its group on this page. Remove the link and the listing drops back. Nothing about it is paid, and there is no manual review.