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A set of free browser-based utilities for resizing images, formatting JSON, processing PDFs, and similar small everyday tasks, with no account required.
We check every product on this page once a day and record whether it still answers.
A free, no-signup toolbox of 100+ browser-based developer utilities (JSON, JWT, Base64, SQL and similar formatters and converters) aimed squarely at developers, not general users.
FreeNo sign-up
What to know▼
How it works
A collection of 100+ browser-based developer tools to format, validate, convert, and generate code for JSON, HTML, CSS, SQL, Base64, UUIDs, JWTs, and text processing.
Pricing
Free, no sign-up required.
Best for
Developers who want a no-signup toolbox of everyday formatting and conversion utilities.
We check every product on this page once a day and record whether it still answers.
A native (non-Electron) Git GUI for Mac and Windows built for speed and low memory use, positioned against GitKraken, SourceTree, Fork and Tower for developers who find those apps sluggish.
No sign-upWorks offline
What to know▼
How it works
A native Git GUI for macOS and Windows with a color-coded, virtualized commit graph and infinite scroll. Works fully offline and locally, with no account or cloud dependency.
What's different
Roughly 12 MB and launches in a fraction of a second, versus the 300–500 MB idle RAM and multi-second cold starts of Electron-based clients like GitKraken, SourceTree, Fork, and Tower.
Best for
Developers frustrated with the resource overhead of Electron-based Git clients.
We check every product on this page once a day and record whether it still answers.
Fast, zero-config cross-shell terminal prompt written in Zig, with no network or telemetry.
Watch out · macOS and Linux only.
No sign-upNo tracking
What to know▼
How it works
Zero-config cross-shell prompt (fish, bash, zsh) written in Zig, showing git branch/state/status, toolchain versions for 39 languages, and a syntax-highlighted history picker on the up arrow.
What's different
Single compiled binary with no config file, no network or telemetry, rendering in about 2ms.
We check every product on this page once a day and record whether it still answers.
A free collection of web utilities like QR generators, color converters, and screen measurement tools, for developers who want quick tools without signing up.
FreeNo sign-up
What to know▼
How it works
Standalone browser utilities for common conversion and generation tasks
We check every product on this page once a day and record whether it still answers.
170+ free browser-based calculators, text, PDF, and dev tools that run entirely client-side with nothing sent to a server, instead of ad-heavy online tool sites.
We check every product on this page once a day and record whether it still answers.
A free, open-source collection of browser tools you can use instantly with no signup, install or tracking; the site doesn't say what the tools actually are.
Watch out · The description doesn't say what the actual tools do.
No sign-upOpen sourceNo tracking
What to know▼
How it works
A collection of browser-based tools you can use instantly via a link, with no signup, install or tracking.
What's different
No account, no install and no tracking required to use any tool.
Watch out
The description doesn't say what the actual tools do.
We check every product on this page once a day and record whether it still answers.
Generates exact-size test files with correct magic bytes/MIME signatures for upload limits and testing pipelines.
No sign-up
What to know▼
How it works
Generates exact-size test files with correct magic bytes and MIME signatures in-browser, or downloads verified MP4/MOV/WebM/PDF/Office samples from stable URLs.
Pricing
No account or upload required.
Best for
Testing upload limits, file validation, and Playwright/Cypress fixtures.
We check every product on this page once a day and record whether it still answers.
A free collection of 20+ browser-based developer utilities — IP checker, JWT decoder, password generator, and more — running client-side with no signup.
FreeNo sign-upNothing to install
What to know▼
How it works
A collection of 20+ browser-based utilities — IP checker, JWT decoder, email validator, password generator, speed test, and more — most running entirely client-side.
Pricing
Free, no signup, no paywalls.
Best for
Developers who want quick access to common utilities.
We check every product on this page once a day and record whether it still answers.
A no-signup suite of web utilities spanning text, image, conversion and business tools that run without tracking, a general toolbox rather than something built for one workflow.
No sign-upNo tracking
What to know▼
How it works
A suite of instant online tools spanning text, business, development, image, conversion, and time/efficiency utilities that run without requiring signup.
Best for
Anyone needing a quick one-off utility without creating an account.
We check every product on this page once a day and record whether it still answers.
A free collection of everyday online conversion, calculation, and utility tools — unit converters, finance calculators, JSON formatting, word counting — with no signup required.
FreeNo sign-upNo ads
What to know▼
How it works
Bundles unit converters, financial calculators, date tools, JSON formatting, word counters, and similar utilities into one free hub.
Best for
Students and professionals needing quick one-off calculations or conversions without creating an account.
We check every product on this page once a day and record whether it still answers.
A free, open-source AI tool that edits JSON files from plain-English instructions instead of hand-written syntax, with diff review and version rollback.
FreeNo sign-upOpen source
What to know▼
How it works
An open-source AI workspace for editing JSON files: describe changes in plain English, review every edit as a diff, and roll back using full version history.
What's different
Diff review and full version rollback for every AI-made edit instead of blind overwrites.
Pricing
Free, no signup required.
Best for
Developers and teams who need to edit JSON without hand-writing syntax.
We check every product on this page once a day and record whether it still answers.
A free set of 17+ client-side developer utilities (JSON/XML/YAML/SQL formatters, regex tester, JWT decoder, hash generator) that run entirely in the browser with nothing sent to a server.
FreeNo sign-upNothing to install
What to know▼
How it works
Provides 17+ browser-based developer tools, JSON/XML/YAML/SQL formatters, a regex tester, a JWT decoder, a hash generator and more, all running client-side so nothing pasted is uploaded or logged.
Pricing
No signup, no rate limits on the core tools.
Best for
Developers who want quick formatting/decoding tools without an account or sending data to a server.
We check every product on this page once a day and record whether it still answers.
A free developer toolkit for image optimization, password generation, and file sharing, paired with a hand-written tips library on CSS, JS, and web performance.
FreeNo sign-up
What to know▼
How it works
Provides image optimization, resizing, conversion, and downloading, plus a secure password generator and expiring-link file sharing, with no account required.
What's different
Paired with a hand-written Pro Tips library covering CSS, JavaScript, HTML, React, Next.js, WordPress, and performance.
We check every product on this page once a day and record whether it still answers.
A free client-side calculator for developers doing bitwise math — AND, OR, XOR, NOT, and bit shifts — with step-by-step results in binary, decimal, and hex.
No sign-upNo tracking
What to know▼
How it works
enter values in any base, see results across all bases plus a 32-bit visualization
What's different
100% client-side, no signup, no tracking, includes calculation history
We check every product on this page once a day and record whether it still answers.
A single browser page with 70+ small dev utilities (JSON formatter, Base64, JWT decoder, cron parser) so you don't need a dozen separate tab-opened tools.
FreeNo sign-up
What to know▼
How it works
Runs entirely client-side in the browser
What's different
No signup, private, 70+ tools in one place
Pricing
Free
Best for
Developers who repeatedly need quick format/encode/decode utilities
We check every product on this page once a day and record whether it still answers.
Free, no-signup toolkit of 169 diagnostics for DNS, email authentication, TLS certificates, IP blacklists and security headers, built for self-hosters debugging mail and web infrastructure.
FreeNo sign-upData stays with you
What to know▼
How it works
runs DNS/SPF/DKIM/DMARC/TLS/blacklist/header checks plus in-browser dev utilities (JWT, cron, regex, hashing)
What's different
replaces juggling six separate diagnostic sites; some checks keep data local to your machine
Pricing
free to run checks; watchlists, alerts, embeddable badges and API available on top
Best for
self-hosters and sysadmins debugging DNS/email/TLS issues
We check every product on this page once a day and record whether it still answers.
A free bundle of 17 SEO and developer utilities — meta tag checker, OG preview, SSL/robots/sitemap validators, and text/code encoders.
Watch out · No sign-up, no ads.
FreeNo sign-upNo ads
What to know▼
How it works
17 tools including meta tag checker, OG preview for Facebook/Twitter/LinkedIn/Google, SSL checker, robots.txt and sitemap validators, structured data tester, JSON formatter, Base64/URL encoder-decoder, QR code generator, color converter, and password generator.
We check every product on this page once a day and record whether it still answers.
A grab-bag of free browser-based utilities - word counter, PDF compressor, BMI calculator, JSON formatter - with no signup. A general toolbox, not built around one job.
FreeNo sign-upNothing to install
What to know▼
How it works
A collection of free browser-based utilities: word counter, PDF compressor, BMI calculator, JSON formatter, and other developer/creator/student tools.
Pricing
Free, no signup required, works in the browser.
Best for
Developers, creators, and students who need a quick one-off tool without installing anything or making an account.
We check every product on this page once a day and record whether it still answers.
A single-page toolbox of 40 client-side developer utilities (JSON, Base64, JWT, regex, hashes, diff, and more), for developers, instead of separate bookmarked sites for each tool.
No sign-upNo ads
What to know▼
How it works
Runs entirely client-side with no ads or sign-up; includes formatters, decoders, converters, and testers.
Best for
Developers who want common conversion/formatting tools in one page without accounts or ads.
We check every product on this page once a day and record whether it still answers.
15 free browser-based developer tools, JSON formatter, regex tester, encoders, generators, styled with a nostalgic Windows 95 look. Runs in the browser, not installed, nothing uploaded to a server.
FreeNo sign-upNothing to install
What to know▼
How it works
15 free developer and productivity tools — JSON formatter, regex tester, base64/URL encoders, UUID and password generators, unit and color converters — running entirely in the browser with a Windows 95-styled interface.
What's different
Nothing is uploaded to a server; everything runs client-side with no signup, ads or tracking.
Pricing
Free.
Best for
Developers who want quick browser-based utility tools without installing anything.
We check every product on this page once a day and record whether it still answers.
A free collection of 200+ browser-based developer tools for formatting, validating, and converting JSON, XML, CSV, and similar formats without installing anything.
We check every product on this page once a day and record whether it still answers.
A free set of 19+ browser dev utilities — QR/barcode generators, JSON formatter, Base64 encoder — with no signup or watermark, for quick one-off developer tasks.
FreeNo sign-up
What to know▼
How it works
A set of over 19 free browser developer utilities, including QR code and barcode generators, a JSON formatter, and a Base64 encoder.
Pricing
Free, no signup, no watermark.
Best for
Developers needing quick one-off utilities like QR/barcode generation or JSON formatting without setting up a signup.
We check every product on this page once a day and record whether it still answers.
A privacy-first IP lookup and network diagnostics toolkit (DNS, WHOIS, WebRTC leak checks) with no account and no tracking, aimed at technical users rather than general consumers.
No sign-upData stays with you
What to know▼
How it works
Shows your public IPv4/IPv6 address, approximate location, ISP and ASN, and runs DNS, WHOIS/RDAP, reverse DNS and WebRTC leak checks.
What's different
No account, no marketing trackers, and no persistent raw IP storage in app-controlled systems.
Best for
Technical users who want network diagnostics without creating an account or being tracked.
We check every product on this page once a day and record whether it still answers.
A free hub of 100+ browser-based tools spanning PDFs, images, SEO and developer utilities, no sign-up or downloads required. A general toolkit with a dedicated developer section, not built for one profession.
FreeNo sign-upNothing to install
What to know▼
How it works
A browser-based hub of 100+ tools for PDFs, images, text, developer utilities, SEO, calculators and generators, with no downloads or sign-up.
What's different
Runs entirely in the browser with no account or install, covering many task categories in one place.
Pricing
Free.
Best for
Students, developers, creators and professionals who want quick access to varied everyday tools without setting up accounts.
We check every product on this page once a day and record whether it still answers.
Over 270 small browser-based utilities (PDF editing, image conversion, text tools) that run without installs or an account, so files stay on your device.
FreeNo sign-upNothing to install
What to know▼
How it works
Over 270 browser-based utilities — including a PDF editor, image converter, and text formatter — that run directly in the browser.
What's different
No downloads or account needed, so files stay on your device instead of being uploaded.
Pricing
Free.
Best for
People who need a quick PDF, image or text tool without installing software.
We check every product on this page once a day and record whether it still answers.
A free collection of 85+ browser-based utility tools (word counter, calculators, JSON formatter, hash and password generators, converters) that run entirely client-side with no file uploads, instead of scattered single-purpose tool sites.
Watch out · PDF tools, image compression, and AI-powered utilities are listed as coming soon, not yet live.
FreeNo sign-upData stays with you
What to know▼
How it works
Everything runs in the browser with no signup and no tracking; files are never stored because there is no upload.
Watch out
PDF tools, image compression, and AI-powered utilities are listed as coming soon, not yet live.
We check every product on this page once a day and record whether it still answers.
A grab-bag of 39+ free browser tools, password generator, QR codes, JSON formatter, unit converters, with no sign-up; a general utility kit, not built for one audience.
FreeNo sign-up
What to know▼
How it works
A collection of 39+ free browser tools including a password generator, age/percentage calculators, image compression, QR code creation, and a JSON formatter.
Pricing
Completely free; no sign-up required.
Best for
Students, developers, creators, and professionals who need quick, one-off utility tools without installing anything.
We check every product on this page once a day and record whether it still answers.
A free collection of 50 client-side web utilities (code formatter, regex tester, image compressor, timestamp converter and more) that run entirely in your browser with no login required.
No sign-upData stays with you
What to know▼
How it works
A collection of 50 client-side web utilities — code formatter, regex tester, image compressor, Unix timestamp converter and more — that run entirely in the browser.
What's different
Runs 100% locally with no login required, so tools work instantly without uploading data.
Best for
Developers who want quick one-off utilities without creating an account or uploading files.
We check every product on this page once a day and record whether it still answers.
110+ browser-based dev utilities — JSON, JWT, regex and SQL formatting and more — that run entirely client-side with no signup, uploads or server calls.
FreeNo sign-upData stays with you
What to know▼
How it works
A collection of 110+ developer utilities — JSON formatter, JWT decoder, regex tester, base64, diff checker, SQL formatter and more — that run entirely in the browser.
What's different
No uploads, no server calls, and no signup, unlike tools that process input server-side.
Pricing
Free.
Best for
Developers who want quick one-off formatting or decoding tools without sending data to a server.
We check every product on this page once a day and record whether it still answers.
A browser-based developer toolkit of 18 utilities (JSON, JWT, CSV, XML, Base64, Regex and more) that run entirely client-side, for developers who don't want to paste sensitive data into a tool that logs it.
FreeNo sign-upWorks offline
What to know▼
How it works
Runs 100% in the browser with zero data sent to any server; works offline, no signup, no account.
What's different
Built after a developer was fired for pasting an API response into a JSON formatter that logged everything.
We check every product on this page once a day and record whether it still answers.
17 client-side developer utilities, JSON formatter, JWT decoder, regex tester, hash and UUID generators and more, in one page, each also exposed as a REST API endpoint. No sign-up, nothing leaves your browser.
No sign-upData stays with you
What to know▼
How it works
A single page bundling 17 client-side developer utilities — JSON formatter, Base64 encoder/decoder, JWT decoder, regex tester, hash generator, UUID generator, URL encoder, timestamp converter, password generator, SQL formatter, cron parser, Markdown preview, color converter, diff tool, QR code generator, Lorem Ipsum generator, and an AI content detector — each also available as a REST API endpoint.
What's different
All processing happens client-side, so data never leaves the browser, and no sign-up is required.
Pricing
No sign-up required.
Best for
Developers who want quick access to common utilities without installing separate tools, including via API in scripts.
We check every product on this page once a day and record whether it still answers.
A free, login-free directory of over 50 small web utilities (age calculator, image enhancer, SEO tools, PDF converter, meme generator) for everyday use.
FreeNo sign-up
What to know▼
How it works
A directory of 50+ small web utilities - age calculator, image enhancer, SEO tools, PDF converter, meme generator, and more.
Pricing
100% free, no login required.
Best for
People who need a quick one-off utility without creating an account.
We check every product on this page once a day and record whether it still answers.
34 free browser-based developer utilities - JSON/XML/SQL formatters, JWT decoder, UUID and QR generators, cURL converter - that run locally with no signup or install.
FreeNo sign-upNothing to install
What to know▼
How it works
A collection of 34 browser-based developer utilities — JSON/XML/SQL formatters, a JWT decoder, UUID and QR code generators, a cURL converter, and text comparison tools.
What's different
Everything runs locally in the browser with no signup or install required.
Best for
Developers who want quick one-off formatting or conversion tools without creating an account.
We check every product on this page once a day and record whether it still answers.
A free grab-bag of browser calculators, converters, SEO checkers and document tools with no signup — a general utility site, not a developer-specific toolkit.
FreeNo sign-upNothing to install
What to know▼
How it works
A collection of free browser-based tools — calculators, converters, developer utilities, SEO checkers, document tools, and generators — that run without signup.
Best for
Anyone needing a quick one-off calculator, converter or checker without creating an account, not specifically developers.
We check every product on this page once a day and record whether it still answers.
A free, no-signup grab-bag of browser tools: image compression, background removal, invoice generation, WhatsApp messaging. Thin, generic copy with no single clear audience.
FreeNo sign-upNothing to install
What to know▼
How it works
A collection of free browser tools for compressing images, removing backgrounds, adding watermarks, generating invoices, and sending WhatsApp messages.
Pricing
100% free, no signup.
Best for
Anyone who needs a quick, no-account way to handle a one-off image or invoice task.
We check every product on this page once a day and record whether it still answers.
Over 168 small utilities — converters, calculators, dev tools — running client-side in your browser with nothing uploaded, no account needed, and offline support once loaded.
FreeNo sign-upNothing to install
What to know▼
How it works
A collection of 168+ browser-based utilities — developer tools, image converters, text analytics, calculators, network utilities and more — that run entirely client-side.
What's different
Every tool runs in your browser so your data never leaves your device, works offline once loaded, and there's no account, paywall or ads on the tools themselves.
Pricing
Free.
Best for
Developers and everyday users who want quick one-off utilities without uploading data or creating an account.
We check every product on this page once a day and record whether it still answers.
A free suite of browser-based developer tools, JSON formatter, regex tester, cron builder, a WCAG accessibility checker, that runs client-side with no signup, ads, or data sent to a server.
FreeNo sign-upData stays with you
What to know▼
How it works
A small suite of browser-based dev tools — JSON formatter, regex tester, cron builder, WCAG contrast checker, and API request tester — that run entirely client-side.
What's different
No accounts, no ads, and no data sent to a server, unlike bookmarked dev-tool sites that get slower and ad-heavier over time.
Pricing
Free.
Best for
Developers who want quick utility tools without signing up or sending data to a server.
We check every product on this page once a day and record whether it still answers.
Open-source browser extension for modifying request/response headers and cookies with local, URL-scoped rules and switchable profiles — test APIs, staging environments, auth and feature flags without changing code.
We check every product on this page once a day and record whether it still answers.
25 free browser tools — Base64/URL encoding, JSON formatting, regex testing, password strength checks, image compression, QR code generation and an AI content studio — all run instantly in-browser, no install or signup.
We check every product on this page once a day and record whether it still answers.
A free collection of 10 browser-based everyday utilities like a word counter and QR generator, with nothing stored.
FreeNo sign-up
What to know▼
How it works
Provides 10 free browser-based utilities — word counter, password generator, unit converter, JSON formatter, QR code generator, and calculators for loans, age, percentages, BMI, and countdowns — with nothing stored or sent anywhere.
Pricing
Free, no signup, no accounts.
Best for
People wanting quick everyday tools without creating an account.
