Best Free Dev Utilities Tools

Free tool to Visualize, Edit, Filter complex JSON data into beautiful tabular Grid. Save and Share JSON data over link link. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

A collection of free online SQL tools, including an SQL formatter and validator, SQL regex tester, fake data generator, and interactive database playgrounds. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

In-browser JSON viewer for large files. Tree view, RegEx search, export, and URL loading with Bearer/Basic auth. Fully client-side, no data uploaded. Free. We could not read the page we cite for this offer when we last looked, on 2026-09-20, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 1 consecutive re-check attempt has failed (most recently 2026-09-20 — HTTP 403), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Realtime currency data API for fintech apps. The free plan includes 5,000 calls per month. The page we cite for this offer does not name it when we last looked, on 2026-09-14, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 2 consecutive re-check attempts have failed (most recently 2026-09-14 — the page never names CurrencyScoop and is not served from its domain), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Access a wide range of free developer tools for encoding, decoding, and data manipulation. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Online developer tools offering free access to all basic tools, with the ability to auto save one entry per tool, standard processing speed, and community support. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

An API for cars to locate, get fuel tank, battery levels, odometer, unlock/lock doors, etc. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Create beautiful images of your code snippets. We could not read the page we cite for this offer when we last looked, on 2026-09-15, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 2 consecutive re-check attempts have failed (most recently 2026-09-15 — page content too short (likely JS-rendered SPA); a rendering client read 178 characters), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

API and Microservice to provides a wide range of information including countries, regions, provinces, cities, postal codes, and much more. The free tier includes up to 100 requests per day. The page we cite for Country-State-City Microservice API states in words that it is free, which confirms the price — the limits stated here come from our own record rather than from that page.

• −1 stale_verification We cannot confirm this offer: 1 consecutive re-check attempt has failed (most recently 2026-09-17 — The pricing page does not mention any specific limits for a free tier. It only states that the API provides geographical data and links to documentation. It's impossible to verify if the 100 requests per day limit still applies.), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

A SaaS with API to control, build & evaluate IoT devices. Free Developer Plan with 5 devices, Free Cloud & data storage. Mobile Apps are also available. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Easily manage redirects with HTTPS support. The free plan includes 5 domains and 250,000 requests per month. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Google Keep for Code Snippets. Organize, Discover, and share code snippets, featuring a powerful code screenshot tool with preset templates and a linking feature. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-10, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-10, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Web service to generate unique and cool images from any text. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

100 Free IP geolocation requests per day. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

A free API providing accurate data for building the Covid-19 related useful Apps. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Quality metadata badges for open source projects Best for open source projects. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML is required. The free plan comes with 50 images/PDFs per month and three templates. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Online free tool for decoding & encoding data. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Receive notifications on email, Slack, Telegram, Discord, and custom webhooks for new releases from GitHub, GitLab, Bitbucket, Python PyPI, Java Maven, Node.js NPM, Node.js Yarn, Ruby Gems, PHP Packagist, .NET NuGet, Rust Cargo and Docker Hub. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Create & share code or binaries. Available to share as a beautiful image e.g. for Twitter / Facebook post or as a link e.g. for chats or forums. We could not read the page we cite for this offer when we last looked, on 2026-09-15, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 2 consecutive re-check attempts have failed (most recently 2026-09-15 — page content too short (likely JS-rendered SPA); a rendering client read 495 characters), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Real-time PubSubHubbub compliant feeds, export, analytics. Free with less customization. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Search news on the web with code, and get JSON results. Developers get 100 queries free each day. Articles have a 24 hour delay. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

An online tool for comparing differences between two JSON data structures, helping you quickly locate the differences in JSON data. The page we cite for this offer does not name it when we last looked, on 2026-09-14, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 1 consecutive re-check attempt has failed (most recently 2026-09-14 — the page never names DiffJSON and is not served from its domain), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

SaaS tool for managing HTTP redirections for businesses, marketing and SEO. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

HD editions are available from $4.99. Free samples are available with no signup. The page we cite for this offer does not name it when we last looked, on 2026-09-05, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 1 consecutive re-check attempt has failed (most recently 2026-09-05 — the page never names StreamBackdrops, on a domain that carries its name), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Create excellent snapshots from your source code to share on social media. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Free daystream database service. All operations are performed by API. Visualization with heat maps and line graphs is also possible. Best for open source projects. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Search and dependency update notifications for 32 different package managers, free for open source Best for open source projects. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

View EXIF data online instantly for a photo including GPS location and metadata. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Create and edit screen recordings and other videos online. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

create and share code snippets in an aesthetic screenshot-like image format. Usually used to aesthetically share/show off code snippets on Twitter or blog posts. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-15, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-15, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Search various websites like GitHub, Gitlab, Heroku, Netlify, and many more for the availability of your project name. We could not read the page we cite for this offer when we last looked, on 2026-09-28, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 7 consecutive re-check attempts have failed (most recently 2026-09-28 — HTTP 429), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Online booking / appointment scheduling system. Free up to 5 bookings per month, includes 1 calendar. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

a note-taking app (PWA) with a powerful built-in multiline calculator. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-15, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-15, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Simple service to get a public IP address in different [formats](https://about.ipaddress.sh/). We could not read the page we cite for this offer when we last looked, on 2026-09-10, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 2 consecutive re-check attempts have failed (most recently 2026-09-10 — page content too short (likely JS-rendered SPA); a rendering client read 12 characters), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Custom RSS feeds for releases of your favorite software — Free 3 custom Feeds 25 Applications per Feed Feeds updated daily Basic support. We could not read the page we cite for this offer when we last looked, on 2026-09-12, so we cannot confirm these terms today.

• −1 stale_verification We cannot confirm this offer: 1 consecutive re-check attempt has failed (most recently 2026-09-12 — HTTP 403), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Instant online format for JSON / XML / SQL. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Open-source x402 payment gateway — gate any API behind micropayments with YAML config. Self-hosted, supports USDC on Base. Enables any developer to monetize APIs for AI agents without building payment infrastructure. Its pricing page has not resolved for us since 2026-04-14, so we cannot confirm these terms today.

• −2 link_unreachable tollbooth's pricing page has not resolved for us since 2026-04-14.

Superseded: As of 2026-08-28, iptrace.io reads: The page offers Standard ($10/200k requests), Basic ($49/500k requests), and Pro ($99/1M requests) plans. A free API key is mentioned as available through ipstack. We are not publishing our stored IPTrace terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ Note — discovered 2026-08-28: The free tier is being discontinued and users are directed to switch to ipstack. The page now offers paid plans starting at $10/month for 200k requests. Source ↗

• −3 free_tier_withdrawn Recorded free tier removal on 2026-08-28: The free tier is being discontinued and users are directed to switch to ipstack. The page now offers paid plans starting at $10/month for 200k requests. Source: https://iptrace.io