A curated catalogue of free, browser-based utilities for developers and everyone — built and maintained by one independent developer with a strong opinion about how online tools should work.
Tools Searcher is a growing catalogue of online utilities — encoders, formatters, validators, converters, generators, virtual keyboards, finance and health calculators — all built to run entirely inside a single browser tab. There is no account to create, no upload to wait for, no opaque API in the middle. Paste your data, click a button, get the result.
The project started because the existing “online tools” landscape is dominated by sites that take thirty seconds to load, push intrusive interstitial ads, run server-side processing on data the user thought was private, and require sign-ups for trivial actions like formatting a JSON string. Tools Searcher aims to be the opposite of that: opinionated, fast, fully client-side, and free.
Tools Searcher is built, edited and maintained by Amine H., an independent developer working on privacy-friendly browser-based utilities for the developer community. The site is operated as a personal project, not under a registered company.
Public profile: GitHub profile. The contact channel is email; see the section below.
The decision to publish under a first name and last initial is intentional. Accountability is preserved through the public commit history on GitHub, the editor byline visible on every page of the site, and a monitored contact address. The project is, however, kept separate from any client or employer — a deliberate boundary, not an attempt to hide who is responsible.
Some boilerplate code (markup scaffolding, repetitive validators, FAQ drafting) and explanatory copy on this site is drafted with the help of large-language-model tools, then reviewed, edited and signed off by a human editor before publication. Formulas, calculations and any technical claim are verified against primary sources by hand. AI is treated as an assistant, not as the author. This disclosure is repeated on the homepage and applies to every page on the site.
Calculators in the Finance and Health sections (BMI, calorie/TDEE, body fat, due date, mortgage, compound interest, VAT, IBAN validation, currency conversion) are educational utilities, not medical or financial advice. Each of these pages carries a visible disclaimer above the tool and links to authoritative primary sources — World Health Organization, U.S. Consumer Financial Protection Bureau, U.S. SEC Investor.gov, European Central Bank, American College of Obstetricians and Gynecologists, SWIFT IBAN Registry, European Commission VAT rates, and similar bodies — so any reader can verify the formula behind a result.
Each tool page declares when it was last reviewed. When a calculation method, a tax rate, an exchange-rate provider, or a third-party data source changes materially, the affected pages are updated and re-reviewed. Bug reports received by email are fixed quickly — the usual turnaround is under five business days.
Every tool on this site runs client-side. Your data — whether a JSON payload, a JWT token, an SSL certificate, a calorie target or a piece of text — is processed inside your browser and never reaches our servers. We do not log it, store it, or analyse it. Third-party scripts present on the site (Google AdSense, Google Analytics, Funding Choices CMP) are listed in our Privacy Policy and are subject to your consent.
The site is built with vanilla HTML, CSS and JavaScript. No React, no Vue, no Tailwind, no build step. Pages load fast, work without JavaScript where possible, and remain readable on slow connections. The code is intentionally simple so that any reader who wants to audit how a tool computes its result can do so by reading the page source.
All tools are and will remain free to use. The site is supported by display advertising served through Google AdSense — at most three ad units per page, always placed outside of the tool itself, never interleaved with its input or output. No affiliate links inside tools, no sponsored content, no paid placements. See the Privacy Policy for cookie details and how to manage your consent.
Tools are added based on real-world developer and everyday needs — either observed in our own work, suggested by readers, or identified as gaps in the existing online-tools landscape. Each tool follows the same blueprint: a focused task, no surprises, accurate output, and explanatory content for users who want to understand what is happening under the hood. If a tool grows beyond what a static page can comfortably handle, it is rewritten or split rather than weighed down with options nobody uses.
Found a bug, want to suggest a tool, or have feedback on an existing one? Email contact@toolssearcher.com. Every message is read. There is no social-media account, no public forum, no Discord — only email and the GitHub profile linked above. Spam, sales pitches, and SEO-link-exchange proposals are filtered automatically and will not receive a reply.
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